feat: hook-pipeline progress — tests passing

rust/README.md

@@ -1,6 +1,6 @@
 # 🦞 Claw Code — Rust Implementation
 
-A high-performance Rust rewrite of the Claw Code CLI agent harness. Built for speed, safety, and native tool execution.
+A high-performance Rust rewrite of the Claude Code CLI agent harness. Built for speed, safety, and native tool execution.
 
 ## Quick Start
 

rust/crates/commands/src/lib.rs

@@ -117,48 +117,6 @@ const SLASH_COMMAND_SPECS: &[SlashCommandSpec] = &[
         argument_hint: None,
         resume_supported: true,
     },
-    SlashCommandSpec {
-        name: "bughunter",
-        summary: "Inspect the codebase for likely bugs",
-        argument_hint: Some("[scope]"),
-        resume_supported: false,
-    },
-    SlashCommandSpec {
-        name: "commit",
-        summary: "Generate a commit message and create a git commit",
-        argument_hint: None,
-        resume_supported: false,
-    },
-    SlashCommandSpec {
-        name: "pr",
-        summary: "Draft or create a pull request from the conversation",
-        argument_hint: Some("[context]"),
-        resume_supported: false,
-    },
-    SlashCommandSpec {
-        name: "issue",
-        summary: "Draft or create a GitHub issue from the conversation",
-        argument_hint: Some("[context]"),
-        resume_supported: false,
-    },
-    SlashCommandSpec {
-        name: "ultraplan",
-        summary: "Run a deep planning prompt with multi-step reasoning",
-        argument_hint: Some("[task]"),
-        resume_supported: false,
-    },
-    SlashCommandSpec {
-        name: "teleport",
-        summary: "Jump to a file or symbol by searching the workspace",
-        argument_hint: Some("<symbol-or-path>"),
-        resume_supported: false,
-    },
-    SlashCommandSpec {
-        name: "debug-tool-call",
-        summary: "Replay the last tool call with debug details",
-        argument_hint: None,
-        resume_supported: false,
-    },
     SlashCommandSpec {
         name: "export",
         summary: "Export the current conversation to a file",
@@ -178,23 +136,6 @@ pub enum SlashCommand {
     Help,
     Status,
     Compact,
-    Bughunter {
-        scope: Option<String>,
-    },
-    Commit,
-    Pr {
-        context: Option<String>,
-    },
-    Issue {
-        context: Option<String>,
-    },
-    Ultraplan {
-        task: Option<String>,
-    },
-    Teleport {
-        target: Option<String>,
-    },
-    DebugToolCall,
     Model {
         model: Option<String>,
     },
@@ -239,23 +180,6 @@ impl SlashCommand {
             "help" => Self::Help,
             "status" => Self::Status,
             "compact" => Self::Compact,
-            "bughunter" => Self::Bughunter {
-                scope: remainder_after_command(trimmed, command),
-            },
-            "commit" => Self::Commit,
-            "pr" => Self::Pr {
-                context: remainder_after_command(trimmed, command),
-            },
-            "issue" => Self::Issue {
-                context: remainder_after_command(trimmed, command),
-            },
-            "ultraplan" => Self::Ultraplan {
-                task: remainder_after_command(trimmed, command),
-            },
-            "teleport" => Self::Teleport {
-                target: remainder_after_command(trimmed, command),
-            },
-            "debug-tool-call" => Self::DebugToolCall,
             "model" => Self::Model {
                 model: parts.next().map(ToOwned::to_owned),
             },
@@ -288,15 +212,6 @@ impl SlashCommand {
     }
 }
 
-fn remainder_after_command(input: &str, command: &str) -> Option<String> {
-    input
-        .trim()
-        .strip_prefix(&format!("/{command}"))
-        .map(str::trim)
-        .filter(|value| !value.is_empty())
-        .map(ToOwned::to_owned)
-}
-
 #[must_use]
 pub fn slash_command_specs() -> &'static [SlashCommandSpec] {
     SLASH_COMMAND_SPECS
@@ -364,13 +279,6 @@ pub fn handle_slash_command(
             session: session.clone(),
         }),
         SlashCommand::Status
-        | SlashCommand::Bughunter { .. }
-        | SlashCommand::Commit
-        | SlashCommand::Pr { .. }
-        | SlashCommand::Issue { .. }
-        | SlashCommand::Ultraplan { .. }
-        | SlashCommand::Teleport { .. }
-        | SlashCommand::DebugToolCall
         | SlashCommand::Model { .. }
         | SlashCommand::Permissions { .. }
         | SlashCommand::Clear { .. }
@@ -399,41 +307,6 @@ mod tests {
     fn parses_supported_slash_commands() {
         assert_eq!(SlashCommand::parse("/help"), Some(SlashCommand::Help));
         assert_eq!(SlashCommand::parse(" /status "), Some(SlashCommand::Status));
-        assert_eq!(
-            SlashCommand::parse("/bughunter runtime"),
-            Some(SlashCommand::Bughunter {
-                scope: Some("runtime".to_string())
-            })
-        );
-        assert_eq!(SlashCommand::parse("/commit"), Some(SlashCommand::Commit));
-        assert_eq!(
-            SlashCommand::parse("/pr ready for review"),
-            Some(SlashCommand::Pr {
-                context: Some("ready for review".to_string())
-            })
-        );
-        assert_eq!(
-            SlashCommand::parse("/issue flaky test"),
-            Some(SlashCommand::Issue {
-                context: Some("flaky test".to_string())
-            })
-        );
-        assert_eq!(
-            SlashCommand::parse("/ultraplan ship both features"),
-            Some(SlashCommand::Ultraplan {
-                task: Some("ship both features".to_string())
-            })
-        );
-        assert_eq!(
-            SlashCommand::parse("/teleport conversation.rs"),
-            Some(SlashCommand::Teleport {
-                target: Some("conversation.rs".to_string())
-            })
-        );
-        assert_eq!(
-            SlashCommand::parse("/debug-tool-call"),
-            Some(SlashCommand::DebugToolCall)
-        );
         assert_eq!(
             SlashCommand::parse("/model claude-opus"),
             Some(SlashCommand::Model {
@@ -501,13 +374,6 @@ mod tests {
         assert!(help.contains("/help"));
         assert!(help.contains("/status"));
         assert!(help.contains("/compact"));
-        assert!(help.contains("/bughunter [scope]"));
-        assert!(help.contains("/commit"));
-        assert!(help.contains("/pr [context]"));
-        assert!(help.contains("/issue [context]"));
-        assert!(help.contains("/ultraplan [task]"));
-        assert!(help.contains("/teleport <symbol-or-path>"));
-        assert!(help.contains("/debug-tool-call"));
         assert!(help.contains("/model [model]"));
         assert!(help.contains("/permissions [read-only|workspace-write|danger-full-access]"));
         assert!(help.contains("/clear [--confirm]"));
@@ -520,7 +386,7 @@ mod tests {
         assert!(help.contains("/version"));
         assert!(help.contains("/export [file]"));
         assert!(help.contains("/session [list|switch <session-id>]"));
-        assert_eq!(slash_command_specs().len(), 22);
+        assert_eq!(slash_command_specs().len(), 15);
         assert_eq!(resume_supported_slash_commands().len(), 11);
     }
 
@@ -568,22 +434,6 @@ mod tests {
         let session = Session::new();
         assert!(handle_slash_command("/unknown", &session, CompactionConfig::default()).is_none());
         assert!(handle_slash_command("/status", &session, CompactionConfig::default()).is_none());
-        assert!(
-            handle_slash_command("/bughunter", &session, CompactionConfig::default()).is_none()
-        );
-        assert!(handle_slash_command("/commit", &session, CompactionConfig::default()).is_none());
-        assert!(handle_slash_command("/pr", &session, CompactionConfig::default()).is_none());
-        assert!(handle_slash_command("/issue", &session, CompactionConfig::default()).is_none());
-        assert!(
-            handle_slash_command("/ultraplan", &session, CompactionConfig::default()).is_none()
-        );
-        assert!(
-            handle_slash_command("/teleport foo", &session, CompactionConfig::default()).is_none()
-        );
-        assert!(
-            handle_slash_command("/debug-tool-call", &session, CompactionConfig::default())
-                .is_none()
-        );
         assert!(
             handle_slash_command("/model claude", &session, CompactionConfig::default()).is_none()
         );

rust/crates/compat-harness/src/lib.rs

@@ -70,16 +70,16 @@ fn upstream_repo_candidates(primary_repo_root: &Path) -> Vec<PathBuf> {
     }
 
     for ancestor in primary_repo_root.ancestors().take(4) {
-        candidates.push(ancestor.join("claw-code"));
+        candidates.push(ancestor.join("claude-code"));
         candidates.push(ancestor.join("clawd-code"));
     }
 
     candidates.push(
         primary_repo_root
             .join("reference-source")
-            .join("claw-code"),
+            .join("claude-code"),
     );
-    candidates.push(primary_repo_root.join("vendor").join("claw-code"));
+    candidates.push(primary_repo_root.join("vendor").join("claude-code"));
 
     let mut deduped = Vec::new();
     for candidate in candidates {

rust/crates/runtime/src/config.rs

@@ -42,6 +42,7 @@ pub struct RuntimeFeatureConfig {
     oauth: Option<OAuthConfig>,
     model: Option<String>,
     permission_mode: Option<ResolvedPermissionMode>,
+    permission_rules: RuntimePermissionRuleConfig,
     sandbox: SandboxConfig,
 }
 
@@ -49,6 +50,14 @@ pub struct RuntimeFeatureConfig {
 pub struct RuntimeHookConfig {
     pre_tool_use: Vec<String>,
     post_tool_use: Vec<String>,
+    post_tool_use_failure: Vec<String>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Default)]
+pub struct RuntimePermissionRuleConfig {
+    allow: Vec<String>,
+    deny: Vec<String>,
+    ask: Vec<String>,
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Default)]
@@ -235,6 +244,7 @@ impl ConfigLoader {
             oauth: parse_optional_oauth_config(&merged_value, "merged settings.oauth")?,
             model: parse_optional_model(&merged_value),
             permission_mode: parse_optional_permission_mode(&merged_value)?,
+            permission_rules: parse_optional_permission_rules(&merged_value)?,
             sandbox: parse_optional_sandbox_config(&merged_value)?,
         };
 
@@ -306,6 +316,11 @@ impl RuntimeConfig {
         self.feature_config.permission_mode
     }
 
+    #[must_use]
+    pub fn permission_rules(&self) -> &RuntimePermissionRuleConfig {
+        &self.feature_config.permission_rules
+    }
+
     #[must_use]
     pub fn sandbox(&self) -> &SandboxConfig {
         &self.feature_config.sandbox
@@ -344,6 +359,11 @@ impl RuntimeFeatureConfig {
         self.permission_mode
     }
 
+    #[must_use]
+    pub fn permission_rules(&self) -> &RuntimePermissionRuleConfig {
+        &self.permission_rules
+    }
+
     #[must_use]
     pub fn sandbox(&self) -> &SandboxConfig {
         &self.sandbox
@@ -352,10 +372,15 @@ impl RuntimeFeatureConfig {
 
 impl RuntimeHookConfig {
     #[must_use]
-    pub fn new(pre_tool_use: Vec<String>, post_tool_use: Vec<String>) -> Self {
+    pub fn new(
+        pre_tool_use: Vec<String>,
+        post_tool_use: Vec<String>,
+        post_tool_use_failure: Vec<String>,
+    ) -> Self {
         Self {
             pre_tool_use,
             post_tool_use,
+            post_tool_use_failure,
         }
     }
 
@@ -368,6 +393,33 @@ impl RuntimeHookConfig {
     pub fn post_tool_use(&self) -> &[String] {
         &self.post_tool_use
     }
+
+    #[must_use]
+    pub fn post_tool_use_failure(&self) -> &[String] {
+        &self.post_tool_use_failure
+    }
+}
+
+impl RuntimePermissionRuleConfig {
+    #[must_use]
+    pub fn new(allow: Vec<String>, deny: Vec<String>, ask: Vec<String>) -> Self {
+        Self { allow, deny, ask }
+    }
+
+    #[must_use]
+    pub fn allow(&self) -> &[String] {
+        &self.allow
+    }
+
+    #[must_use]
+    pub fn deny(&self) -> &[String] {
+        &self.deny
+    }
+
+    #[must_use]
+    pub fn ask(&self) -> &[String] {
+        &self.ask
+    }
 }
 
 impl McpConfigCollection {
@@ -481,6 +533,32 @@ fn parse_optional_hooks_config(root: &JsonValue) -> Result<RuntimeHookConfig, Co
             .unwrap_or_default(),
         post_tool_use: optional_string_array(hooks, "PostToolUse", "merged settings.hooks")?
             .unwrap_or_default(),
+        post_tool_use_failure: optional_string_array(
+            hooks,
+            "PostToolUseFailure",
+            "merged settings.hooks",
+        )?
+        .unwrap_or_default(),
+    })
+}
+
+fn parse_optional_permission_rules(
+    root: &JsonValue,
+) -> Result<RuntimePermissionRuleConfig, ConfigError> {
+    let Some(object) = root.as_object() else {
+        return Ok(RuntimePermissionRuleConfig::default());
+    };
+    let Some(permissions) = object.get("permissions").and_then(JsonValue::as_object) else {
+        return Ok(RuntimePermissionRuleConfig::default());
+    };
+
+    Ok(RuntimePermissionRuleConfig {
+        allow: optional_string_array(permissions, "allow", "merged settings.permissions")?
+            .unwrap_or_default(),
+        deny: optional_string_array(permissions, "deny", "merged settings.permissions")?
+            .unwrap_or_default(),
+        ask: optional_string_array(permissions, "ask", "merged settings.permissions")?
+            .unwrap_or_default(),
     })
 }
 
@@ -843,7 +921,7 @@ mod tests {
         .expect("write user compat config");
         fs::write(
             home.join("settings.json"),
-            r#"{"model":"sonnet","env":{"A2":"1"},"hooks":{"PreToolUse":["base"]},"permissions":{"defaultMode":"plan"}}"#,
+            r#"{"model":"sonnet","env":{"A2":"1"},"hooks":{"PreToolUse":["base"]},"permissions":{"defaultMode":"plan","allow":["Read"],"deny":["Bash(rm -rf)"]}}"#,
         )
         .expect("write user settings");
         fs::write(
@@ -853,7 +931,7 @@ mod tests {
         .expect("write project compat config");
         fs::write(
             cwd.join(".claude").join("settings.json"),
-            r#"{"env":{"C":"3"},"hooks":{"PostToolUse":["project"]},"mcpServers":{"project":{"command":"uvx","args":["project"]}}}"#,
+            r#"{"env":{"C":"3"},"hooks":{"PostToolUse":["project"],"PostToolUseFailure":["project-failure"]},"permissions":{"ask":["Edit"]},"mcpServers":{"project":{"command":"uvx","args":["project"]}}}"#,
         )
         .expect("write project settings");
         fs::write(
@@ -898,6 +976,16 @@ mod tests {
             .contains_key("PostToolUse"));
         assert_eq!(loaded.hooks().pre_tool_use(), &["base".to_string()]);
         assert_eq!(loaded.hooks().post_tool_use(), &["project".to_string()]);
+        assert_eq!(
+            loaded.hooks().post_tool_use_failure(),
+            &["project-failure".to_string()]
+        );
+        assert_eq!(loaded.permission_rules().allow(), &["Read".to_string()]);
+        assert_eq!(
+            loaded.permission_rules().deny(),
+            &["Bash(rm -rf)".to_string()]
+        );
+        assert_eq!(loaded.permission_rules().ask(), &["Edit".to_string()]);
         assert!(loaded.mcp().get("home").is_some());
         assert!(loaded.mcp().get("project").is_some());
 

rust/crates/runtime/src/conversation.rs

@@ -5,14 +5,13 @@ use crate::compact::{
     compact_session, estimate_session_tokens, CompactionConfig, CompactionResult,
 };
 use crate::config::RuntimeFeatureConfig;
-use crate::hooks::{HookRunResult, HookRunner};
+use crate::hooks::{HookAbortSignal, HookProgressReporter, HookRunResult, HookRunner};
-use crate::permissions::{PermissionOutcome, PermissionPolicy, PermissionPrompter};
+use crate::permissions::{
+    PermissionContext, PermissionOutcome, PermissionPolicy, PermissionPrompter,
+};
 use crate::session::{ContentBlock, ConversationMessage, Session};
 use crate::usage::{TokenUsage, UsageTracker};
 
-const DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD: u32 = 200_000;
-const AUTO_COMPACTION_THRESHOLD_ENV_VAR: &str = "CLAUDE_CODE_AUTO_COMPACT_INPUT_TOKENS";
-
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct ApiRequest {
     pub system_prompt: Vec<String>,
@@ -89,12 +88,6 @@ pub struct TurnSummary {
     pub tool_results: Vec<ConversationMessage>,
     pub iterations: usize,
     pub usage: TokenUsage,
-    pub auto_compaction: Option<AutoCompactionEvent>,
-}
-
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub struct AutoCompactionEvent {
-    pub removed_message_count: usize,
 }
 
 pub struct ConversationRuntime<C, T> {
@@ -106,7 +99,8 @@ pub struct ConversationRuntime<C, T> {
     max_iterations: usize,
     usage_tracker: UsageTracker,
     hook_runner: HookRunner,
-    auto_compaction_input_tokens_threshold: u32,
+    hook_abort_signal: HookAbortSignal,
+    hook_progress_reporter: Option<Box<dyn HookProgressReporter>>,
 }
 
 impl<C, T> ConversationRuntime<C, T>
@@ -133,6 +127,7 @@ where
     }
 
     #[must_use]
+    #[allow(clippy::needless_pass_by_value)]
     pub fn new_with_features(
         session: Session,
         api_client: C,
@@ -151,7 +146,8 @@ where
             max_iterations: usize::MAX,
             usage_tracker,
             hook_runner: HookRunner::from_feature_config(&feature_config),
-            auto_compaction_input_tokens_threshold: auto_compaction_threshold_from_env(),
+            hook_abort_signal: HookAbortSignal::default(),
+            hook_progress_reporter: None,
         }
     }
 
@@ -162,11 +158,92 @@ where
     }
 
     #[must_use]
-    pub fn with_auto_compaction_input_tokens_threshold(mut self, threshold: u32) -> Self {
+    pub fn with_hook_abort_signal(mut self, hook_abort_signal: HookAbortSignal) -> Self {
-        self.auto_compaction_input_tokens_threshold = threshold;
+        self.hook_abort_signal = hook_abort_signal;
         self
     }
 
+    #[must_use]
+    pub fn with_hook_progress_reporter(
+        mut self,
+        hook_progress_reporter: Box<dyn HookProgressReporter>,
+    ) -> Self {
+        self.hook_progress_reporter = Some(hook_progress_reporter);
+        self
+    }
+
+    fn run_pre_tool_use_hook(&mut self, tool_name: &str, input: &str) -> HookRunResult {
+        if let Some(reporter) = self.hook_progress_reporter.as_mut() {
+            self.hook_runner.run_pre_tool_use_with_context(
+                tool_name,
+                input,
+                Some(&self.hook_abort_signal),
+                Some(reporter.as_mut()),
+            )
+        } else {
+            self.hook_runner.run_pre_tool_use_with_context(
+                tool_name,
+                input,
+                Some(&self.hook_abort_signal),
+                None,
+            )
+        }
+    }
+
+    fn run_post_tool_use_hook(
+        &mut self,
+        tool_name: &str,
+        input: &str,
+        output: &str,
+        is_error: bool,
+    ) -> HookRunResult {
+        if let Some(reporter) = self.hook_progress_reporter.as_mut() {
+            self.hook_runner.run_post_tool_use_with_context(
+                tool_name,
+                input,
+                output,
+                is_error,
+                Some(&self.hook_abort_signal),
+                Some(reporter.as_mut()),
+            )
+        } else {
+            self.hook_runner.run_post_tool_use_with_context(
+                tool_name,
+                input,
+                output,
+                is_error,
+                Some(&self.hook_abort_signal),
+                None,
+            )
+        }
+    }
+
+    fn run_post_tool_use_failure_hook(
+        &mut self,
+        tool_name: &str,
+        input: &str,
+        output: &str,
+    ) -> HookRunResult {
+        if let Some(reporter) = self.hook_progress_reporter.as_mut() {
+            self.hook_runner.run_post_tool_use_failure_with_context(
+                tool_name,
+                input,
+                output,
+                Some(&self.hook_abort_signal),
+                Some(reporter.as_mut()),
+            )
+        } else {
+            self.hook_runner.run_post_tool_use_failure_with_context(
+                tool_name,
+                input,
+                output,
+                Some(&self.hook_abort_signal),
+                None,
+            )
+        }
+    }
+
+    #[allow(clippy::too_many_lines)]
     pub fn run_turn(
         &mut self,
         user_input: impl Into<String>,
@@ -216,69 +293,96 @@ where
             }
 
             for (tool_use_id, tool_name, input) in pending_tool_uses {
-                let permission_outcome = if let Some(prompt) = prompter.as_mut() {
+                let pre_hook_result = self.run_pre_tool_use_hook(&tool_name, &input);
-                    self.permission_policy
+                let effective_input = pre_hook_result
-                        .authorize(&tool_name, &input, Some(*prompt))
+                    .updated_input()
+                    .map_or_else(|| input.clone(), ToOwned::to_owned);
+                let permission_context = PermissionContext::new(
+                    pre_hook_result.permission_override(),
+                    pre_hook_result.permission_reason().map(ToOwned::to_owned),
+                );
+
+                let permission_outcome = if pre_hook_result.is_cancelled() {
+                    PermissionOutcome::Deny {
+                        reason: format_hook_message(
+                            &pre_hook_result,
+                            &format!("PreToolUse hook cancelled tool `{tool_name}`"),
+                        ),
+                    }
+                } else if pre_hook_result.is_denied() {
+                    PermissionOutcome::Deny {
+                        reason: format_hook_message(
+                            &pre_hook_result,
+                            &format!("PreToolUse hook denied tool `{tool_name}`"),
+                        ),
+                    }
+                } else if let Some(prompt) = prompter.as_mut() {
+                    self.permission_policy.authorize_with_context(
+                        &tool_name,
+                        &effective_input,
+                        &permission_context,
+                        Some(*prompt),
+                    )
                 } else {
-                    self.permission_policy.authorize(&tool_name, &input, None)
+                    self.permission_policy.authorize_with_context(
+                        &tool_name,
+                        &effective_input,
+                        &permission_context,
+                        None,
+                    )
                 };
 
                 let result_message = match permission_outcome {
                     PermissionOutcome::Allow => {
-                        let pre_hook_result = self.hook_runner.run_pre_tool_use(&tool_name, &input);
+                        let (mut output, mut is_error) =
-                        if pre_hook_result.is_denied() {
+                            match self.tool_executor.execute(&tool_name, &effective_input) {
-                            let deny_message = format!("PreToolUse hook denied tool `{tool_name}`");
+                                Ok(output) => (output, false),
-                            ConversationMessage::tool_result(
+                                Err(error) => (error.to_string(), true),
-                                tool_use_id,
+                            };
-                                tool_name,
+                        output = merge_hook_feedback(pre_hook_result.messages(), output, false);
-                                format_hook_message(&pre_hook_result, &deny_message),
+
-                                true,
+                        let post_hook_result = if is_error {
+                            self.run_post_tool_use_failure_hook(
+                                &tool_name,
+                                &effective_input,
+                                &output,
                             )
                         } else {
-                            let (mut output, mut is_error) =
+                            self.run_post_tool_use_hook(
-                                match self.tool_executor.execute(&tool_name, &input) {
+                                &tool_name,
-                                    Ok(output) => (output, false),
+                                &effective_input,
-                                    Err(error) => (error.to_string(), true),
+                                &output,
-                                };
+                                false,
-                            output = merge_hook_feedback(pre_hook_result.messages(), output, false);
-
-                            let post_hook_result = self
-                                .hook_runner
-                                .run_post_tool_use(&tool_name, &input, &output, is_error);
-                            if post_hook_result.is_denied() {
-                                is_error = true;
-                            }
-                            output = merge_hook_feedback(
-                                post_hook_result.messages(),
-                                output,
-                                post_hook_result.is_denied(),
-                            );
-
-                            ConversationMessage::tool_result(
-                                tool_use_id,
-                                tool_name,
-                                output,
-                                is_error,
                             )
+                        };
+                        if post_hook_result.is_denied() || post_hook_result.is_cancelled() {
+                            is_error = true;
                         }
+                        output = merge_hook_feedback(
+                            post_hook_result.messages(),
+                            output,
+                            post_hook_result.is_denied() || post_hook_result.is_cancelled(),
+                        );
+
+                        ConversationMessage::tool_result(tool_use_id, tool_name, output, is_error)
                     }
-                    PermissionOutcome::Deny { reason } => {
+                    PermissionOutcome::Deny { reason } => ConversationMessage::tool_result(
-                        ConversationMessage::tool_result(tool_use_id, tool_name, reason, true)
+                        tool_use_id,
-                    }
+                        tool_name,
+                        merge_hook_feedback(pre_hook_result.messages(), reason, true),
+                        true,
+                    ),
                 };
                 self.session.messages.push(result_message.clone());
                 tool_results.push(result_message);
             }
         }
 
-        let auto_compaction = self.maybe_auto_compact();
-
         Ok(TurnSummary {
             assistant_messages,
             tool_results,
             iterations,
             usage: self.usage_tracker.cumulative_usage(),
-            auto_compaction,
         })
     }
 
@@ -306,48 +410,6 @@ where
     pub fn into_session(self) -> Session {
         self.session
     }
-
-    fn maybe_auto_compact(&mut self) -> Option<AutoCompactionEvent> {
-        if self.usage_tracker.cumulative_usage().input_tokens
-            < self.auto_compaction_input_tokens_threshold
-        {
-            return None;
-        }
-
-        let result = compact_session(
-            &self.session,
-            CompactionConfig {
-                max_estimated_tokens: 0,
-                ..CompactionConfig::default()
-            },
-        );
-
-        if result.removed_message_count == 0 {
-            return None;
-        }
-
-        self.session = result.compacted_session;
-        Some(AutoCompactionEvent {
-            removed_message_count: result.removed_message_count,
-        })
-    }
-}
-
-#[must_use]
-pub fn auto_compaction_threshold_from_env() -> u32 {
-    parse_auto_compaction_threshold(
-        std::env::var(AUTO_COMPACTION_THRESHOLD_ENV_VAR)
-            .ok()
-            .as_deref(),
-    )
-}
-
-#[must_use]
-fn parse_auto_compaction_threshold(value: Option<&str>) -> u32 {
-    value
-        .and_then(|raw| raw.trim().parse::<u32>().ok())
-        .filter(|threshold| *threshold > 0)
-        .unwrap_or(DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD)
 }
 
 fn build_assistant_message(
@@ -458,9 +520,8 @@ impl ToolExecutor for StaticToolExecutor {
 #[cfg(test)]
 mod tests {
     use super::{
-        parse_auto_compaction_threshold, ApiClient, ApiRequest, AssistantEvent,
+        ApiClient, ApiRequest, AssistantEvent, ConversationRuntime, RuntimeError,
-        AutoCompactionEvent, ConversationRuntime, RuntimeError, StaticToolExecutor,
+        StaticToolExecutor,
-        DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD,
     };
     use crate::compact::CompactionConfig;
     use crate::config::{RuntimeFeatureConfig, RuntimeHookConfig};
@@ -571,7 +632,6 @@ mod tests {
         assert_eq!(summary.tool_results.len(), 1);
         assert_eq!(runtime.session().messages.len(), 4);
         assert_eq!(summary.usage.output_tokens, 10);
-        assert_eq!(summary.auto_compaction, None);
         assert!(matches!(
             runtime.session().messages[1].blocks[1],
             ContentBlock::ToolUse { .. }
@@ -676,6 +736,7 @@ mod tests {
             RuntimeFeatureConfig::default().with_hooks(RuntimeHookConfig::new(
                 vec![shell_snippet("printf 'blocked by hook'; exit 2")],
                 Vec::new(),
+                Vec::new(),
             )),
         );
 
@@ -742,6 +803,7 @@ mod tests {
             RuntimeFeatureConfig::default().with_hooks(RuntimeHookConfig::new(
                 vec![shell_snippet("printf 'pre hook ran'")],
                 vec![shell_snippet("printf 'post hook ran'")],
+                Vec::new(),
             )),
         );
 
@@ -761,7 +823,7 @@ mod tests {
             "post hook should preserve non-error result: {output:?}"
         );
         assert!(
-            output.contains("4"),
+            output.contains('4'),
             "tool output missing value: {output:?}"
         );
         assert!(
@@ -862,111 +924,4 @@ mod tests {
     fn shell_snippet(script: &str) -> String {
         script.to_string()
     }
-
-    #[test]
-    fn auto_compacts_when_cumulative_input_threshold_is_crossed() {
-        struct SimpleApi;
-        impl ApiClient for SimpleApi {
-            fn stream(
-                &mut self,
-                _request: ApiRequest,
-            ) -> Result<Vec<AssistantEvent>, RuntimeError> {
-                Ok(vec![
-                    AssistantEvent::TextDelta("done".to_string()),
-                    AssistantEvent::Usage(TokenUsage {
-                        input_tokens: 120_000,
-                        output_tokens: 4,
-                        cache_creation_input_tokens: 0,
-                        cache_read_input_tokens: 0,
-                    }),
-                    AssistantEvent::MessageStop,
-                ])
-            }
-        }
-
-        let session = Session {
-            version: 1,
-            messages: vec![
-                crate::session::ConversationMessage::user_text("one"),
-                crate::session::ConversationMessage::assistant(vec![ContentBlock::Text {
-                    text: "two".to_string(),
-                }]),
-                crate::session::ConversationMessage::user_text("three"),
-                crate::session::ConversationMessage::assistant(vec![ContentBlock::Text {
-                    text: "four".to_string(),
-                }]),
-            ],
-        };
-
-        let mut runtime = ConversationRuntime::new(
-            session,
-            SimpleApi,
-            StaticToolExecutor::new(),
-            PermissionPolicy::new(PermissionMode::DangerFullAccess),
-            vec!["system".to_string()],
-        )
-        .with_auto_compaction_input_tokens_threshold(100_000);
-
-        let summary = runtime
-            .run_turn("trigger", None)
-            .expect("turn should succeed");
-
-        assert_eq!(
-            summary.auto_compaction,
-            Some(AutoCompactionEvent {
-                removed_message_count: 2,
-            })
-        );
-        assert_eq!(runtime.session().messages[0].role, MessageRole::System);
-    }
-
-    #[test]
-    fn skips_auto_compaction_below_threshold() {
-        struct SimpleApi;
-        impl ApiClient for SimpleApi {
-            fn stream(
-                &mut self,
-                _request: ApiRequest,
-            ) -> Result<Vec<AssistantEvent>, RuntimeError> {
-                Ok(vec![
-                    AssistantEvent::TextDelta("done".to_string()),
-                    AssistantEvent::Usage(TokenUsage {
-                        input_tokens: 99_999,
-                        output_tokens: 4,
-                        cache_creation_input_tokens: 0,
-                        cache_read_input_tokens: 0,
-                    }),
-                    AssistantEvent::MessageStop,
-                ])
-            }
-        }
-
-        let mut runtime = ConversationRuntime::new(
-            Session::new(),
-            SimpleApi,
-            StaticToolExecutor::new(),
-            PermissionPolicy::new(PermissionMode::DangerFullAccess),
-            vec!["system".to_string()],
-        )
-        .with_auto_compaction_input_tokens_threshold(100_000);
-
-        let summary = runtime
-            .run_turn("trigger", None)
-            .expect("turn should succeed");
-        assert_eq!(summary.auto_compaction, None);
-        assert_eq!(runtime.session().messages.len(), 2);
-    }
-
-    #[test]
-    fn auto_compaction_threshold_defaults_and_parses_values() {
-        assert_eq!(
-            parse_auto_compaction_threshold(None),
-            DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD
-        );
-        assert_eq!(parse_auto_compaction_threshold(Some("4321")), 4321);
-        assert_eq!(
-            parse_auto_compaction_threshold(Some("not-a-number")),
-            DEFAULT_AUTO_COMPACTION_INPUT_TOKENS_THRESHOLD
-        );
-    }
 }

rust/crates/runtime/src/hooks.rs

@@ -1,29 +1,90 @@
 use std::ffi::OsStr;
-use std::process::Command;
+use std::io::Write;
+use std::process::{Command, Stdio};
+use std::sync::{
+    atomic::{AtomicBool, Ordering},
+    Arc,
+};
+use std::thread;
+use std::time::Duration;
 
-use serde_json::json;
+use serde_json::{json, Value};
 
 use crate::config::{RuntimeFeatureConfig, RuntimeHookConfig};
+use crate::permissions::PermissionOverride;
+
+pub type HookPermissionDecision = PermissionOverride;
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum HookEvent {
     PreToolUse,
     PostToolUse,
+    PostToolUseFailure,
 }
 
 impl HookEvent {
-    fn as_str(self) -> &'static str {
+    #[must_use]
+    pub fn as_str(self) -> &'static str {
         match self {
             Self::PreToolUse => "PreToolUse",
             Self::PostToolUse => "PostToolUse",
+            Self::PostToolUseFailure => "PostToolUseFailure",
         }
     }
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum HookProgressEvent {
+    Started {
+        event: HookEvent,
+        tool_name: String,
+        command: String,
+    },
+    Completed {
+        event: HookEvent,
+        tool_name: String,
+        command: String,
+    },
+    Cancelled {
+        event: HookEvent,
+        tool_name: String,
+        command: String,
+    },
+}
+
+pub trait HookProgressReporter {
+    fn on_event(&mut self, event: &HookProgressEvent);
+}
+
+#[derive(Debug, Clone, Default)]
+pub struct HookAbortSignal {
+    aborted: Arc<AtomicBool>,
+}
+
+impl HookAbortSignal {
+    #[must_use]
+    pub fn new() -> Self {
+        Self::default()
+    }
+
+    pub fn abort(&self) {
+        self.aborted.store(true, Ordering::SeqCst);
+    }
+
+    #[must_use]
+    pub fn is_aborted(&self) -> bool {
+        self.aborted.load(Ordering::SeqCst)
+    }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct HookRunResult {
     denied: bool,
+    cancelled: bool,
     messages: Vec<String>,
+    permission_override: Option<PermissionOverride>,
+    permission_reason: Option<String>,
+    updated_input: Option<String>,
 }
 
 impl HookRunResult {
@@ -31,7 +92,11 @@ impl HookRunResult {
     pub fn allow(messages: Vec<String>) -> Self {
         Self {
             denied: false,
+            cancelled: false,
             messages,
+            permission_override: None,
+            permission_reason: None,
+            updated_input: None,
         }
     }
 
@@ -40,10 +105,40 @@ impl HookRunResult {
         self.denied
     }
 
+    #[must_use]
+    pub fn is_cancelled(&self) -> bool {
+        self.cancelled
+    }
+
     #[must_use]
     pub fn messages(&self) -> &[String] {
         &self.messages
     }
+
+    #[must_use]
+    pub fn permission_override(&self) -> Option<PermissionOverride> {
+        self.permission_override
+    }
+
+    #[must_use]
+    pub fn permission_decision(&self) -> Option<HookPermissionDecision> {
+        self.permission_override
+    }
+
+    #[must_use]
+    pub fn permission_reason(&self) -> Option<&str> {
+        self.permission_reason.as_deref()
+    }
+
+    #[must_use]
+    pub fn updated_input(&self) -> Option<&str> {
+        self.updated_input.as_deref()
+    }
+
+    #[must_use]
+    pub fn updated_input_json(&self) -> Option<&str> {
+        self.updated_input()
+    }
 }
 
 #[derive(Debug, Clone, PartialEq, Eq, Default)]
@@ -64,16 +159,39 @@ impl HookRunner {
 
     #[must_use]
     pub fn run_pre_tool_use(&self, tool_name: &str, tool_input: &str) -> HookRunResult {
-        self.run_commands(
+        self.run_pre_tool_use_with_context(tool_name, tool_input, None, None)
+    }
+
+    #[must_use]
+    pub fn run_pre_tool_use_with_context(
+        &self,
+        tool_name: &str,
+        tool_input: &str,
+        abort_signal: Option<&HookAbortSignal>,
+        reporter: Option<&mut dyn HookProgressReporter>,
+    ) -> HookRunResult {
+        Self::run_commands(
             HookEvent::PreToolUse,
             self.config.pre_tool_use(),
             tool_name,
             tool_input,
             None,
             false,
+            abort_signal,
+            reporter,
         )
     }
 
+    #[must_use]
+    pub fn run_pre_tool_use_with_signal(
+        &self,
+        tool_name: &str,
+        tool_input: &str,
+        abort_signal: Option<&HookAbortSignal>,
+    ) -> HookRunResult {
+        self.run_pre_tool_use_with_context(tool_name, tool_input, abort_signal, None)
+    }
+
     #[must_use]
     pub fn run_post_tool_use(
         &self,
@@ -82,43 +200,147 @@ impl HookRunner {
         tool_output: &str,
         is_error: bool,
     ) -> HookRunResult {
-        self.run_commands(
+        self.run_post_tool_use_with_context(
+            tool_name,
+            tool_input,
+            tool_output,
+            is_error,
+            None,
+            None,
+        )
+    }
+
+    #[must_use]
+    pub fn run_post_tool_use_with_context(
+        &self,
+        tool_name: &str,
+        tool_input: &str,
+        tool_output: &str,
+        is_error: bool,
+        abort_signal: Option<&HookAbortSignal>,
+        reporter: Option<&mut dyn HookProgressReporter>,
+    ) -> HookRunResult {
+        Self::run_commands(
             HookEvent::PostToolUse,
             self.config.post_tool_use(),
             tool_name,
             tool_input,
             Some(tool_output),
             is_error,
+            abort_signal,
+            reporter,
         )
     }
 
-    fn run_commands(
+    #[must_use]
+    pub fn run_post_tool_use_with_signal(
         &self,
+        tool_name: &str,
+        tool_input: &str,
+        tool_output: &str,
+        is_error: bool,
+        abort_signal: Option<&HookAbortSignal>,
+    ) -> HookRunResult {
+        self.run_post_tool_use_with_context(
+            tool_name,
+            tool_input,
+            tool_output,
+            is_error,
+            abort_signal,
+            None,
+        )
+    }
+
+    #[must_use]
+    pub fn run_post_tool_use_failure(
+        &self,
+        tool_name: &str,
+        tool_input: &str,
+        tool_error: &str,
+    ) -> HookRunResult {
+        self.run_post_tool_use_failure_with_context(tool_name, tool_input, tool_error, None, None)
+    }
+
+    #[must_use]
+    pub fn run_post_tool_use_failure_with_context(
+        &self,
+        tool_name: &str,
+        tool_input: &str,
+        tool_error: &str,
+        abort_signal: Option<&HookAbortSignal>,
+        reporter: Option<&mut dyn HookProgressReporter>,
+    ) -> HookRunResult {
+        Self::run_commands(
+            HookEvent::PostToolUseFailure,
+            self.config.post_tool_use_failure(),
+            tool_name,
+            tool_input,
+            Some(tool_error),
+            true,
+            abort_signal,
+            reporter,
+        )
+    }
+
+    #[must_use]
+    pub fn run_post_tool_use_failure_with_signal(
+        &self,
+        tool_name: &str,
+        tool_input: &str,
+        tool_error: &str,
+        abort_signal: Option<&HookAbortSignal>,
+    ) -> HookRunResult {
+        self.run_post_tool_use_failure_with_context(
+            tool_name,
+            tool_input,
+            tool_error,
+            abort_signal,
+            None,
+        )
+    }
+
+    #[allow(clippy::too_many_arguments)]
+    fn run_commands(
         event: HookEvent,
         commands: &[String],
         tool_name: &str,
         tool_input: &str,
         tool_output: Option<&str>,
         is_error: bool,
+        abort_signal: Option<&HookAbortSignal>,
+        mut reporter: Option<&mut dyn HookProgressReporter>,
     ) -> HookRunResult {
         if commands.is_empty() {
             return HookRunResult::allow(Vec::new());
         }
 
-        let payload = json!({
+        if abort_signal.is_some_and(HookAbortSignal::is_aborted) {
-            "hook_event_name": event.as_str(),
+            return HookRunResult {
-            "tool_name": tool_name,
+                denied: false,
-            "tool_input": parse_tool_input(tool_input),
+                cancelled: true,
-            "tool_input_json": tool_input,
+                messages: vec![format!(
-            "tool_output": tool_output,
+                    "{} hook cancelled before execution",
-            "tool_result_is_error": is_error,
+                    event.as_str()
-        })
+                )],
-        .to_string();
+                permission_override: None,
+                permission_reason: None,
+                updated_input: None,
+            };
+        }
 
-        let mut messages = Vec::new();
+        let payload = hook_payload(event, tool_name, tool_input, tool_output, is_error).to_string();
+        let mut result = HookRunResult::allow(Vec::new());
 
         for command in commands {
-            match self.run_command(
+            if let Some(reporter) = reporter.as_deref_mut() {
+                reporter.on_event(&HookProgressEvent::Started {
+                    event,
+                    tool_name: tool_name.to_string(),
+                    command: command.clone(),
+                });
+            }
+
+            match Self::run_command(
                 command,
                 event,
                 tool_name,
@@ -126,31 +348,60 @@ impl HookRunner {
                 tool_output,
                 is_error,
                 &payload,
+                abort_signal,
             ) {
-                HookCommandOutcome::Allow { message } => {
+                HookCommandOutcome::Allow { parsed } => {
-                    if let Some(message) = message {
+                    if let Some(reporter) = reporter.as_deref_mut() {
-                        messages.push(message);
+                        reporter.on_event(&HookProgressEvent::Completed {
+                            event,
+                            tool_name: tool_name.to_string(),
+                            command: command.clone(),
+                        });
                     }
+                    merge_parsed_hook_output(&mut result, parsed);
                 }
-                HookCommandOutcome::Deny { message } => {
+                HookCommandOutcome::Deny { parsed } => {
-                    let message = message.unwrap_or_else(|| {
+                    if let Some(reporter) = reporter.as_deref_mut() {
-                        format!("{} hook denied tool `{tool_name}`", event.as_str())
+                        reporter.on_event(&HookProgressEvent::Completed {
-                    });
+                            event,
-                    messages.push(message);
+                            tool_name: tool_name.to_string(),
-                    return HookRunResult {
+                            command: command.clone(),
-                        denied: true,
+                        });
-                        messages,
+                    }
-                    };
+                    merge_parsed_hook_output(&mut result, parsed);
+                    result.denied = true;
+                    return result;
+                }
+                HookCommandOutcome::Warn { message } => {
+                    if let Some(reporter) = reporter.as_deref_mut() {
+                        reporter.on_event(&HookProgressEvent::Completed {
+                            event,
+                            tool_name: tool_name.to_string(),
+                            command: command.clone(),
+                        });
+                    }
+                    result.messages.push(message);
+                }
+                HookCommandOutcome::Cancelled { message } => {
+                    if let Some(reporter) = reporter.as_deref_mut() {
+                        reporter.on_event(&HookProgressEvent::Cancelled {
+                            event,
+                            tool_name: tool_name.to_string(),
+                            command: command.clone(),
+                        });
+                    }
+                    result.cancelled = true;
+                    result.messages.push(message);
+                    return result;
                 }
-                HookCommandOutcome::Warn { message } => messages.push(message),
             }
         }
 
-        HookRunResult::allow(messages)
+        result
     }
 
+    #[allow(clippy::too_many_arguments)]
     fn run_command(
-        &self,
         command: &str,
         event: HookEvent,
         tool_name: &str,
@@ -158,11 +409,12 @@ impl HookRunner {
         tool_output: Option<&str>,
         is_error: bool,
         payload: &str,
+        abort_signal: Option<&HookAbortSignal>,
     ) -> HookCommandOutcome {
         let mut child = shell_command(command);
-        child.stdin(std::process::Stdio::piped());
+        child.stdin(Stdio::piped());
-        child.stdout(std::process::Stdio::piped());
+        child.stdout(Stdio::piped());
-        child.stderr(std::process::Stdio::piped());
+        child.stderr(Stdio::piped());
         child.env("HOOK_EVENT", event.as_str());
         child.env("HOOK_TOOL_NAME", tool_name);
         child.env("HOOK_TOOL_INPUT", tool_input);
@@ -171,19 +423,30 @@ impl HookRunner {
             child.env("HOOK_TOOL_OUTPUT", tool_output);
         }
 
-        match child.output_with_stdin(payload.as_bytes()) {
+        match child.output_with_stdin(payload.as_bytes(), abort_signal) {
-            Ok(output) => {
+            Ok(CommandExecution::Finished(output)) => {
                 let stdout = String::from_utf8_lossy(&output.stdout).trim().to_string();
                 let stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
-                let message = (!stdout.is_empty()).then_some(stdout);
+                let parsed = parse_hook_output(&stdout);
                 match output.status.code() {
-                    Some(0) => HookCommandOutcome::Allow { message },
+                    Some(0) => {
-                    Some(2) => HookCommandOutcome::Deny { message },
+                        if parsed.deny {
+                            HookCommandOutcome::Deny { parsed }
+                        } else {
+                            HookCommandOutcome::Allow { parsed }
+                        }
+                    }
+                    Some(2) => HookCommandOutcome::Deny {
+                        parsed: parsed.with_fallback_message(format!(
+                            "{} hook denied tool `{tool_name}`",
+                            event.as_str()
+                        )),
+                    },
                     Some(code) => HookCommandOutcome::Warn {
                         message: format_hook_warning(
                             command,
                             code,
-                            message.as_deref(),
+                            parsed.primary_message(),
                             stderr.as_str(),
                         ),
                     },
@@ -195,6 +458,12 @@ impl HookRunner {
                     },
                 }
             }
+            Ok(CommandExecution::Cancelled) => HookCommandOutcome::Cancelled {
+                message: format!(
+                    "{} hook `{command}` cancelled while handling `{tool_name}`",
+                    event.as_str()
+                ),
+            },
             Err(error) => HookCommandOutcome::Warn {
                 message: format!(
                     "{} hook `{command}` failed to start for `{tool_name}`: {error}",
@@ -206,12 +475,131 @@ impl HookRunner {
 }
 
 enum HookCommandOutcome {
-    Allow { message: Option<String> },
+    Allow { parsed: ParsedHookOutput },
-    Deny { message: Option<String> },
+    Deny { parsed: ParsedHookOutput },
     Warn { message: String },
+    Cancelled { message: String },
 }
 
-fn parse_tool_input(tool_input: &str) -> serde_json::Value {
+#[derive(Debug, Clone, PartialEq, Eq, Default)]
+struct ParsedHookOutput {
+    messages: Vec<String>,
+    deny: bool,
+    permission_override: Option<PermissionOverride>,
+    permission_reason: Option<String>,
+    updated_input: Option<String>,
+}
+
+impl ParsedHookOutput {
+    fn with_fallback_message(mut self, fallback: String) -> Self {
+        if self.messages.is_empty() {
+            self.messages.push(fallback);
+        }
+        self
+    }
+
+    fn primary_message(&self) -> Option<&str> {
+        self.messages.first().map(String::as_str)
+    }
+}
+
+fn merge_parsed_hook_output(target: &mut HookRunResult, parsed: ParsedHookOutput) {
+    target.messages.extend(parsed.messages);
+    if parsed.permission_override.is_some() {
+        target.permission_override = parsed.permission_override;
+    }
+    if parsed.permission_reason.is_some() {
+        target.permission_reason = parsed.permission_reason;
+    }
+    if parsed.updated_input.is_some() {
+        target.updated_input = parsed.updated_input;
+    }
+}
+
+fn parse_hook_output(stdout: &str) -> ParsedHookOutput {
+    if stdout.is_empty() {
+        return ParsedHookOutput::default();
+    }
+
+    let Ok(Value::Object(root)) = serde_json::from_str::<Value>(stdout) else {
+        return ParsedHookOutput {
+            messages: vec![stdout.to_string()],
+            ..ParsedHookOutput::default()
+        };
+    };
+
+    let mut parsed = ParsedHookOutput::default();
+
+    if let Some(message) = root.get("systemMessage").and_then(Value::as_str) {
+        parsed.messages.push(message.to_string());
+    }
+    if let Some(message) = root.get("reason").and_then(Value::as_str) {
+        parsed.messages.push(message.to_string());
+    }
+    if root.get("continue").and_then(Value::as_bool) == Some(false)
+        || root.get("decision").and_then(Value::as_str) == Some("block")
+    {
+        parsed.deny = true;
+    }
+
+    if let Some(Value::Object(specific)) = root.get("hookSpecificOutput") {
+        if let Some(Value::String(additional_context)) = specific.get("additionalContext") {
+            parsed.messages.push(additional_context.clone());
+        }
+        if let Some(decision) = specific.get("permissionDecision").and_then(Value::as_str) {
+            parsed.permission_override = match decision {
+                "allow" => Some(PermissionOverride::Allow),
+                "deny" => Some(PermissionOverride::Deny),
+                "ask" => Some(PermissionOverride::Ask),
+                _ => None,
+            };
+        }
+        if let Some(reason) = specific
+            .get("permissionDecisionReason")
+            .and_then(Value::as_str)
+        {
+            parsed.permission_reason = Some(reason.to_string());
+        }
+        if let Some(updated_input) = specific.get("updatedInput") {
+            parsed.updated_input = serde_json::to_string(updated_input).ok();
+        }
+    }
+
+    if parsed.messages.is_empty() {
+        parsed.messages.push(stdout.to_string());
+    }
+
+    parsed
+}
+
+fn hook_payload(
+    event: HookEvent,
+    tool_name: &str,
+    tool_input: &str,
+    tool_output: Option<&str>,
+    is_error: bool,
+) -> Value {
+    match event {
+        HookEvent::PostToolUseFailure => json!({
+            "hook_event_name": event.as_str(),
+            "tool_name": tool_name,
+            "tool_input": parse_tool_input(tool_input),
+            "tool_input_json": tool_input,
+            "tool_error": tool_output,
+            "tool_result_is_error": true,
+        }),
+        _ => json!({
+            "hook_event_name": event.as_str(),
+            "tool_name": tool_name,
+            "tool_input": parse_tool_input(tool_input),
+            "tool_input_json": tool_input,
+            "tool_output": tool_output,
+            "tool_result_is_error": is_error,
+        }),
+    }
+}
+
+fn parse_tool_input(tool_input: &str) -> Value {
     serde_json::from_str(tool_input).unwrap_or_else(|_| json!({ "raw": tool_input }))
 }
 
@@ -255,17 +643,17 @@ impl CommandWithStdin {
         Self { command }
     }
 
-    fn stdin(&mut self, cfg: std::process::Stdio) -> &mut Self {
+    fn stdin(&mut self, cfg: Stdio) -> &mut Self {
         self.command.stdin(cfg);
         self
     }
 
-    fn stdout(&mut self, cfg: std::process::Stdio) -> &mut Self {
+    fn stdout(&mut self, cfg: Stdio) -> &mut Self {
         self.command.stdout(cfg);
         self
     }
 
-    fn stderr(&mut self, cfg: std::process::Stdio) -> &mut Self {
+    fn stderr(&mut self, cfg: Stdio) -> &mut Self {
         self.command.stderr(cfg);
         self
     }
@@ -279,26 +667,64 @@ impl CommandWithStdin {
         self
     }
 
-    fn output_with_stdin(&mut self, stdin: &[u8]) -> std::io::Result<std::process::Output> {
+    fn output_with_stdin(
+        &mut self,
+        stdin: &[u8],
+        abort_signal: Option<&HookAbortSignal>,
+    ) -> std::io::Result<CommandExecution> {
         let mut child = self.command.spawn()?;
         if let Some(mut child_stdin) = child.stdin.take() {
-            use std::io::Write;
             child_stdin.write_all(stdin)?;
         }
-        child.wait_with_output()
+
+        loop {
+            if abort_signal.is_some_and(HookAbortSignal::is_aborted) {
+                let _ = child.kill();
+                let _ = child.wait_with_output();
+                return Ok(CommandExecution::Cancelled);
+            }
+
+            match child.try_wait()? {
+                Some(_) => return child.wait_with_output().map(CommandExecution::Finished),
+                None => thread::sleep(Duration::from_millis(20)),
+            }
+        }
     }
 }
 
+enum CommandExecution {
+    Finished(std::process::Output),
+    Cancelled,
+}
+
 #[cfg(test)]
 mod tests {
-    use super::{HookRunResult, HookRunner};
+    use std::thread;
+    use std::time::Duration;
+
+    use super::{
+        HookAbortSignal, HookEvent, HookProgressEvent, HookProgressReporter, HookRunResult,
+        HookRunner,
+    };
     use crate::config::{RuntimeFeatureConfig, RuntimeHookConfig};
+    use crate::permissions::PermissionOverride;
+
+    struct RecordingReporter {
+        events: Vec<HookProgressEvent>,
+    }
+
+    impl HookProgressReporter for RecordingReporter {
+        fn on_event(&mut self, event: &HookProgressEvent) {
+            self.events.push(event.clone());
+        }
+    }
 
     #[test]
     fn allows_exit_code_zero_and_captures_stdout() {
         let runner = HookRunner::new(RuntimeHookConfig::new(
             vec![shell_snippet("printf 'pre ok'")],
             Vec::new(),
+            Vec::new(),
         ));
 
         let result = runner.run_pre_tool_use("Read", r#"{"path":"README.md"}"#);
@@ -311,6 +737,7 @@ mod tests {
         let runner = HookRunner::new(RuntimeHookConfig::new(
             vec![shell_snippet("printf 'blocked by hook'; exit 2")],
             Vec::new(),
+            Vec::new(),
         ));
 
         let result = runner.run_pre_tool_use("Bash", r#"{"command":"pwd"}"#);
@@ -325,6 +752,7 @@ mod tests {
             RuntimeHookConfig::new(
                 vec![shell_snippet("printf 'warning hook'; exit 1")],
                 Vec::new(),
+                Vec::new(),
             ),
         ));
 
@@ -337,6 +765,82 @@ mod tests {
             .any(|message| message.contains("allowing tool execution to continue")));
     }
 
+    #[test]
+    fn parses_pre_hook_permission_override_and_updated_input() {
+        let runner = HookRunner::new(RuntimeHookConfig::new(
+            vec![shell_snippet(
+                r#"printf '%s' '{"systemMessage":"updated","hookSpecificOutput":{"permissionDecision":"allow","permissionDecisionReason":"hook ok","updatedInput":{"command":"git status"}}}'"#,
+            )],
+            Vec::new(),
+            Vec::new(),
+        ));
+
+        let result = runner.run_pre_tool_use("bash", r#"{"command":"pwd"}"#);
+
+        assert_eq!(
+            result.permission_override(),
+            Some(PermissionOverride::Allow)
+        );
+        assert_eq!(result.permission_reason(), Some("hook ok"));
+        assert_eq!(result.updated_input(), Some(r#"{"command":"git status"}"#));
+        assert!(result.messages().iter().any(|message| message == "updated"));
+    }
+
+    #[test]
+    fn runs_post_tool_use_failure_hooks() {
+        let runner = HookRunner::new(RuntimeHookConfig::new(
+            Vec::new(),
+            Vec::new(),
+            vec![shell_snippet("printf 'failure hook ran'")],
+        ));
+
+        let result =
+            runner.run_post_tool_use_failure("bash", r#"{"command":"false"}"#, "command failed");
+
+        assert!(!result.is_denied());
+        assert_eq!(result.messages(), &["failure hook ran".to_string()]);
+    }
+
+    #[test]
+    fn abort_signal_cancels_long_running_hook_and_reports_progress() {
+        let runner = HookRunner::new(RuntimeHookConfig::new(
+            vec![shell_snippet("sleep 5")],
+            Vec::new(),
+            Vec::new(),
+        ));
+        let abort_signal = HookAbortSignal::new();
+        let abort_signal_for_thread = abort_signal.clone();
+        let mut reporter = RecordingReporter { events: Vec::new() };
+
+        thread::spawn(move || {
+            thread::sleep(Duration::from_millis(100));
+            abort_signal_for_thread.abort();
+        });
+
+        let result = runner.run_pre_tool_use_with_context(
+            "bash",
+            r#"{"command":"sleep 5"}"#,
+            Some(&abort_signal),
+            Some(&mut reporter),
+        );
+
+        assert!(result.is_cancelled());
+        assert!(reporter.events.iter().any(|event| matches!(
+            event,
+            HookProgressEvent::Started {
+                event: HookEvent::PreToolUse,
+                ..
+            }
+        )));
+        assert!(reporter.events.iter().any(|event| matches!(
+            event,
+            HookProgressEvent::Cancelled {
+                event: HookEvent::PreToolUse,
+                ..
+            }
+        )));
+    }
+
     #[cfg(windows)]
     fn shell_snippet(script: &str) -> String {
         script.replace('\'', "\"")

rust/crates/runtime/src/lib.rs

@@ -28,18 +28,20 @@ pub use config::{
     McpConfigCollection, McpOAuthConfig, McpRemoteServerConfig, McpSdkServerConfig,
     McpServerConfig, McpStdioServerConfig, McpTransport, McpWebSocketServerConfig, OAuthConfig,
     ResolvedPermissionMode, RuntimeConfig, RuntimeFeatureConfig, RuntimeHookConfig,
-    ScopedMcpServerConfig, CLAUDE_CODE_SETTINGS_SCHEMA_NAME,
+    RuntimePermissionRuleConfig, ScopedMcpServerConfig, CLAUDE_CODE_SETTINGS_SCHEMA_NAME,
 };
 pub use conversation::{
-    auto_compaction_threshold_from_env, ApiClient, ApiRequest, AssistantEvent, AutoCompactionEvent,
+    ApiClient, ApiRequest, AssistantEvent, ConversationRuntime, RuntimeError, StaticToolExecutor,
-    ConversationRuntime, RuntimeError, StaticToolExecutor, ToolError, ToolExecutor, TurnSummary,
+    ToolError, ToolExecutor, TurnSummary,
 };
 pub use file_ops::{
     edit_file, glob_search, grep_search, read_file, write_file, EditFileOutput, GlobSearchOutput,
     GrepSearchInput, GrepSearchOutput, ReadFileOutput, StructuredPatchHunk, TextFilePayload,
     WriteFileOutput,
 };
-pub use hooks::{HookEvent, HookRunResult, HookRunner};
+pub use hooks::{
+    HookAbortSignal, HookEvent, HookProgressEvent, HookProgressReporter, HookRunResult, HookRunner,
+};
 pub use mcp::{
     mcp_server_signature, mcp_tool_name, mcp_tool_prefix, normalize_name_for_mcp,
     scoped_mcp_config_hash, unwrap_ccr_proxy_url,
@@ -64,8 +66,8 @@ pub use oauth::{
     PkceChallengeMethod, PkceCodePair,
 };
 pub use permissions::{
-    PermissionMode, PermissionOutcome, PermissionPolicy, PermissionPromptDecision,
+    PermissionContext, PermissionMode, PermissionOutcome, PermissionOverride, PermissionPolicy,
-    PermissionPrompter, PermissionRequest,
+    PermissionPromptDecision, PermissionPrompter, PermissionRequest,
 };
 pub use prompt::{
     load_system_prompt, prepend_bullets, ContextFile, ProjectContext, PromptBuildError,

rust/crates/runtime/src/permissions.rs

@@ -1,5 +1,9 @@
 use std::collections::BTreeMap;
 
+use serde_json::Value;
+
+use crate::config::RuntimePermissionRuleConfig;
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
 pub enum PermissionMode {
     ReadOnly,
@@ -22,12 +26,49 @@ impl PermissionMode {
     }
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum PermissionOverride {
+    Allow,
+    Deny,
+    Ask,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq, Default)]
+pub struct PermissionContext {
+    override_decision: Option<PermissionOverride>,
+    override_reason: Option<String>,
+}
+
+impl PermissionContext {
+    #[must_use]
+    pub fn new(
+        override_decision: Option<PermissionOverride>,
+        override_reason: Option<String>,
+    ) -> Self {
+        Self {
+            override_decision,
+            override_reason,
+        }
+    }
+
+    #[must_use]
+    pub fn override_decision(&self) -> Option<PermissionOverride> {
+        self.override_decision
+    }
+
+    #[must_use]
+    pub fn override_reason(&self) -> Option<&str> {
+        self.override_reason.as_deref()
+    }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct PermissionRequest {
     pub tool_name: String,
     pub input: String,
     pub current_mode: PermissionMode,
     pub required_mode: PermissionMode,
+    pub reason: Option<String>,
 }
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -50,6 +91,9 @@ pub enum PermissionOutcome {
 pub struct PermissionPolicy {
     active_mode: PermissionMode,
     tool_requirements: BTreeMap<String, PermissionMode>,
+    allow_rules: Vec<PermissionRule>,
+    deny_rules: Vec<PermissionRule>,
+    ask_rules: Vec<PermissionRule>,
 }
 
 impl PermissionPolicy {
@@ -58,6 +102,9 @@ impl PermissionPolicy {
         Self {
             active_mode,
             tool_requirements: BTreeMap::new(),
+            allow_rules: Vec::new(),
+            deny_rules: Vec::new(),
+            ask_rules: Vec::new(),
         }
     }
 
@@ -72,6 +119,26 @@ impl PermissionPolicy {
         self
     }
 
+    #[must_use]
+    pub fn with_permission_rules(mut self, config: &RuntimePermissionRuleConfig) -> Self {
+        self.allow_rules = config
+            .allow()
+            .iter()
+            .map(|rule| PermissionRule::parse(rule))
+            .collect();
+        self.deny_rules = config
+            .deny()
+            .iter()
+            .map(|rule| PermissionRule::parse(rule))
+            .collect();
+        self.ask_rules = config
+            .ask()
+            .iter()
+            .map(|rule| PermissionRule::parse(rule))
+            .collect();
+        self
+    }
+
     #[must_use]
     pub fn active_mode(&self) -> PermissionMode {
         self.active_mode
@@ -90,38 +157,121 @@ impl PermissionPolicy {
         &self,
         tool_name: &str,
         input: &str,
-        mut prompter: Option<&mut dyn PermissionPrompter>,
+        prompter: Option<&mut dyn PermissionPrompter>,
     ) -> PermissionOutcome {
-        let current_mode = self.active_mode();
+        self.authorize_with_context(tool_name, input, &PermissionContext::default(), prompter)
-        let required_mode = self.required_mode_for(tool_name);
+    }
-        if current_mode == PermissionMode::Allow || current_mode >= required_mode {
+
-            return PermissionOutcome::Allow;
+    #[must_use]
+    #[allow(clippy::too_many_lines)]
+    pub fn authorize_with_context(
+        &self,
+        tool_name: &str,
+        input: &str,
+        context: &PermissionContext,
+        prompter: Option<&mut dyn PermissionPrompter>,
+    ) -> PermissionOutcome {
+        if let Some(rule) = Self::find_matching_rule(&self.deny_rules, tool_name, input) {
+            return PermissionOutcome::Deny {
+                reason: format!(
+                    "Permission to use {tool_name} has been denied by rule '{}'",
+                    rule.raw
+                ),
+            };
         }
 
-        let request = PermissionRequest {
+        let current_mode = self.active_mode();
-            tool_name: tool_name.to_string(),
+        let required_mode = self.required_mode_for(tool_name);
-            input: input.to_string(),
+        let ask_rule = Self::find_matching_rule(&self.ask_rules, tool_name, input);
-            current_mode,
+        let allow_rule = Self::find_matching_rule(&self.allow_rules, tool_name, input);
-            required_mode,
+
-        };
+        match context.override_decision() {
+            Some(PermissionOverride::Deny) => {
+                return PermissionOutcome::Deny {
+                    reason: context.override_reason().map_or_else(
+                        || format!("tool '{tool_name}' denied by hook"),
+                        ToOwned::to_owned,
+                    ),
+                };
+            }
+            Some(PermissionOverride::Ask) => {
+                let reason = context.override_reason().map_or_else(
+                    || format!("tool '{tool_name}' requires approval due to hook guidance"),
+                    ToOwned::to_owned,
+                );
+                return Self::prompt_or_deny(
+                    tool_name,
+                    input,
+                    current_mode,
+                    required_mode,
+                    Some(reason),
+                    prompter,
+                );
+            }
+            Some(PermissionOverride::Allow) => {
+                if let Some(rule) = ask_rule {
+                    let reason = format!(
+                        "tool '{tool_name}' requires approval due to ask rule '{}'",
+                        rule.raw
+                    );
+                    return Self::prompt_or_deny(
+                        tool_name,
+                        input,
+                        current_mode,
+                        required_mode,
+                        Some(reason),
+                        prompter,
+                    );
+                }
+                if allow_rule.is_some()
+                    || current_mode == PermissionMode::Allow
+                    || current_mode >= required_mode
+                {
+                    return PermissionOutcome::Allow;
+                }
+            }
+            None => {}
+        }
+
+        if let Some(rule) = ask_rule {
+            let reason = format!(
+                "tool '{tool_name}' requires approval due to ask rule '{}'",
+                rule.raw
+            );
+            return Self::prompt_or_deny(
+                tool_name,
+                input,
+                current_mode,
+                required_mode,
+                Some(reason),
+                prompter,
+            );
+        }
+
+        if allow_rule.is_some()
+            || current_mode == PermissionMode::Allow
+            || current_mode >= required_mode
+        {
+            return PermissionOutcome::Allow;
+        }
 
         if current_mode == PermissionMode::Prompt
             || (current_mode == PermissionMode::WorkspaceWrite
                 && required_mode == PermissionMode::DangerFullAccess)
         {
-            return match prompter.as_mut() {
+            let reason = Some(format!(
-                Some(prompter) => match prompter.decide(&request) {
+                "tool '{tool_name}' requires approval to escalate from {} to {}",
-                    PermissionPromptDecision::Allow => PermissionOutcome::Allow,
+                current_mode.as_str(),
-                    PermissionPromptDecision::Deny { reason } => PermissionOutcome::Deny { reason },
+                required_mode.as_str()
-                },
+            ));
-                None => PermissionOutcome::Deny {
+            return Self::prompt_or_deny(
-                    reason: format!(
+                tool_name,
-                        "tool '{tool_name}' requires approval to escalate from {} to {}",
+                input,
-                        current_mode.as_str(),
+                current_mode,
-                        required_mode.as_str()
+                required_mode,
-                    ),
+                reason,
-                },
+                prompter,
-            };
+            );
         }
 
         PermissionOutcome::Deny {
@@ -132,14 +282,191 @@ impl PermissionPolicy {
             ),
         }
     }
+
+    fn prompt_or_deny(
+        tool_name: &str,
+        input: &str,
+        current_mode: PermissionMode,
+        required_mode: PermissionMode,
+        reason: Option<String>,
+        mut prompter: Option<&mut dyn PermissionPrompter>,
+    ) -> PermissionOutcome {
+        let request = PermissionRequest {
+            tool_name: tool_name.to_string(),
+            input: input.to_string(),
+            current_mode,
+            required_mode,
+            reason: reason.clone(),
+        };
+
+        match prompter.as_mut() {
+            Some(prompter) => match prompter.decide(&request) {
+                PermissionPromptDecision::Allow => PermissionOutcome::Allow,
+                PermissionPromptDecision::Deny { reason } => PermissionOutcome::Deny { reason },
+            },
+            None => PermissionOutcome::Deny {
+                reason: reason.unwrap_or_else(|| {
+                    format!(
+                        "tool '{tool_name}' requires approval to run while mode is {}",
+                        current_mode.as_str()
+                    )
+                }),
+            },
+        }
+    }
+
+    fn find_matching_rule<'a>(
+        rules: &'a [PermissionRule],
+        tool_name: &str,
+        input: &str,
+    ) -> Option<&'a PermissionRule> {
+        rules.iter().find(|rule| rule.matches(tool_name, input))
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+struct PermissionRule {
+    raw: String,
+    tool_name: String,
+    matcher: PermissionRuleMatcher,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+enum PermissionRuleMatcher {
+    Any,
+    Exact(String),
+    Prefix(String),
+}
+
+impl PermissionRule {
+    fn parse(raw: &str) -> Self {
+        let trimmed = raw.trim();
+        let open = find_first_unescaped(trimmed, '(');
+        let close = find_last_unescaped(trimmed, ')');
+
+        if let (Some(open), Some(close)) = (open, close) {
+            if close == trimmed.len() - 1 && open < close {
+                let tool_name = trimmed[..open].trim();
+                let content = &trimmed[open + 1..close];
+                if !tool_name.is_empty() {
+                    let matcher = parse_rule_matcher(content);
+                    return Self {
+                        raw: trimmed.to_string(),
+                        tool_name: tool_name.to_string(),
+                        matcher,
+                    };
+                }
+            }
+        }
+
+        Self {
+            raw: trimmed.to_string(),
+            tool_name: trimmed.to_string(),
+            matcher: PermissionRuleMatcher::Any,
+        }
+    }
+
+    fn matches(&self, tool_name: &str, input: &str) -> bool {
+        if self.tool_name != tool_name {
+            return false;
+        }
+
+        match &self.matcher {
+            PermissionRuleMatcher::Any => true,
+            PermissionRuleMatcher::Exact(expected) => {
+                extract_permission_subject(input).is_some_and(|candidate| candidate == *expected)
+            }
+            PermissionRuleMatcher::Prefix(prefix) => extract_permission_subject(input)
+                .is_some_and(|candidate| candidate.starts_with(prefix)),
+        }
+    }
+}
+
+fn parse_rule_matcher(content: &str) -> PermissionRuleMatcher {
+    let unescaped = unescape_rule_content(content.trim());
+    if unescaped.is_empty() || unescaped == "*" {
+        PermissionRuleMatcher::Any
+    } else if let Some(prefix) = unescaped.strip_suffix(":*") {
+        PermissionRuleMatcher::Prefix(prefix.to_string())
+    } else {
+        PermissionRuleMatcher::Exact(unescaped)
+    }
+}
+
+fn unescape_rule_content(content: &str) -> String {
+    content
+        .replace(r"\(", "(")
+        .replace(r"\)", ")")
+        .replace(r"\\", r"\")
+}
+
+fn find_first_unescaped(value: &str, needle: char) -> Option<usize> {
+    let mut escaped = false;
+    for (idx, ch) in value.char_indices() {
+        if ch == '\\' {
+            escaped = !escaped;
+            continue;
+        }
+        if ch == needle && !escaped {
+            return Some(idx);
+        }
+        escaped = false;
+    }
+    None
+}
+
+fn find_last_unescaped(value: &str, needle: char) -> Option<usize> {
+    let chars = value.char_indices().collect::<Vec<_>>();
+    for (pos, (idx, ch)) in chars.iter().enumerate().rev() {
+        if *ch != needle {
+            continue;
+        }
+        let mut backslashes = 0;
+        for (_, prev) in chars[..pos].iter().rev() {
+            if *prev == '\\' {
+                backslashes += 1;
+            } else {
+                break;
+            }
+        }
+        if backslashes % 2 == 0 {
+            return Some(*idx);
+        }
+    }
+    None
+}
+
+fn extract_permission_subject(input: &str) -> Option<String> {
+    let parsed = serde_json::from_str::<Value>(input).ok();
+    if let Some(Value::Object(object)) = parsed {
+        for key in [
+            "command",
+            "path",
+            "file_path",
+            "filePath",
+            "notebook_path",
+            "notebookPath",
+            "url",
+            "pattern",
+            "code",
+            "message",
+        ] {
+            if let Some(value) = object.get(key).and_then(Value::as_str) {
+                return Some(value.to_string());
+            }
+        }
+    }
+
+    (!input.trim().is_empty()).then(|| input.to_string())
 }
 
 #[cfg(test)]
 mod tests {
     use super::{
-        PermissionMode, PermissionOutcome, PermissionPolicy, PermissionPromptDecision,
+        PermissionContext, PermissionMode, PermissionOutcome, PermissionOverride, PermissionPolicy,
-        PermissionPrompter, PermissionRequest,
+        PermissionPromptDecision, PermissionPrompter, PermissionRequest,
     };
+    use crate::config::RuntimePermissionRuleConfig;
 
     struct RecordingPrompter {
         seen: Vec<PermissionRequest>,
@@ -229,4 +556,120 @@ mod tests {
             PermissionOutcome::Deny { reason } if reason == "not now"
         ));
     }
+
+    #[test]
+    fn applies_rule_based_denials_and_allows() {
+        let rules = RuntimePermissionRuleConfig::new(
+            vec!["bash(git:*)".to_string()],
+            vec!["bash(rm -rf:*)".to_string()],
+            Vec::new(),
+        );
+        let policy = PermissionPolicy::new(PermissionMode::ReadOnly)
+            .with_tool_requirement("bash", PermissionMode::DangerFullAccess)
+            .with_permission_rules(&rules);
+
+        assert_eq!(
+            policy.authorize("bash", r#"{"command":"git status"}"#, None),
+            PermissionOutcome::Allow
+        );
+        assert!(matches!(
+            policy.authorize("bash", r#"{"command":"rm -rf /tmp/x"}"#, None),
+            PermissionOutcome::Deny { reason } if reason.contains("denied by rule")
+        ));
+    }
+
+    #[test]
+    fn ask_rules_force_prompt_even_when_mode_allows() {
+        let rules = RuntimePermissionRuleConfig::new(
+            Vec::new(),
+            Vec::new(),
+            vec!["bash(git:*)".to_string()],
+        );
+        let policy = PermissionPolicy::new(PermissionMode::DangerFullAccess)
+            .with_tool_requirement("bash", PermissionMode::DangerFullAccess)
+            .with_permission_rules(&rules);
+        let mut prompter = RecordingPrompter {
+            seen: Vec::new(),
+            allow: true,
+        };
+
+        let outcome = policy.authorize("bash", r#"{"command":"git status"}"#, Some(&mut prompter));
+
+        assert_eq!(outcome, PermissionOutcome::Allow);
+        assert_eq!(prompter.seen.len(), 1);
+        assert!(prompter.seen[0]
+            .reason
+            .as_deref()
+            .is_some_and(|reason| reason.contains("ask rule")));
+    }
+
+    #[test]
+    fn hook_allow_still_respects_ask_rules() {
+        let rules = RuntimePermissionRuleConfig::new(
+            Vec::new(),
+            Vec::new(),
+            vec!["bash(git:*)".to_string()],
+        );
+        let policy = PermissionPolicy::new(PermissionMode::ReadOnly)
+            .with_tool_requirement("bash", PermissionMode::DangerFullAccess)
+            .with_permission_rules(&rules);
+        let context = PermissionContext::new(
+            Some(PermissionOverride::Allow),
+            Some("hook approved".to_string()),
+        );
+        let mut prompter = RecordingPrompter {
+            seen: Vec::new(),
+            allow: true,
+        };
+
+        let outcome = policy.authorize_with_context(
+            "bash",
+            r#"{"command":"git status"}"#,
+            &context,
+            Some(&mut prompter),
+        );
+
+        assert_eq!(outcome, PermissionOutcome::Allow);
+        assert_eq!(prompter.seen.len(), 1);
+    }
+
+    #[test]
+    fn hook_deny_short_circuits_permission_flow() {
+        let policy = PermissionPolicy::new(PermissionMode::DangerFullAccess)
+            .with_tool_requirement("bash", PermissionMode::DangerFullAccess);
+        let context = PermissionContext::new(
+            Some(PermissionOverride::Deny),
+            Some("blocked by hook".to_string()),
+        );
+
+        assert_eq!(
+            policy.authorize_with_context("bash", "{}", &context, None),
+            PermissionOutcome::Deny {
+                reason: "blocked by hook".to_string(),
+            }
+        );
+    }
+
+    #[test]
+    fn hook_ask_forces_prompt() {
+        let policy = PermissionPolicy::new(PermissionMode::DangerFullAccess)
+            .with_tool_requirement("bash", PermissionMode::DangerFullAccess);
+        let context = PermissionContext::new(
+            Some(PermissionOverride::Ask),
+            Some("hook requested confirmation".to_string()),
+        );
+        let mut prompter = RecordingPrompter {
+            seen: Vec::new(),
+            allow: true,
+        };
+
+        let outcome = policy.authorize_with_context("bash", "{}", &context, Some(&mut prompter));
+
+        assert_eq!(outcome, PermissionOutcome::Allow);
+        assert_eq!(prompter.seen.len(), 1);
+        assert_eq!(
+            prompter.seen[0].reason.as_deref(),
+            Some("hook requested confirmation")
+        );
+    }
 }

rust/crates/runtime/src/prompt.rs

@@ -421,7 +421,7 @@ fn render_config_section(config: &RuntimeConfig) -> String {
     let mut lines = vec!["# Runtime config".to_string()];
     if config.loaded_entries().is_empty() {
         lines.extend(prepend_bullets(vec![
-            "No Claw Code settings files loaded.".to_string(),
+            "No Claude Code settings files loaded.".to_string(),
         ]));
         return lines.join("\n");
     }

rust/crates/rusty-claude-cli/Cargo.toml

@@ -19,7 +19,7 @@ rustyline = "15"
 runtime = { path = "../runtime" }
 serde_json = "1"
 syntect = "5"
-tokio = { version = "1", features = ["rt-multi-thread", "time"] }
+tokio = { version = "1", features = ["rt-multi-thread", "signal", "time"] }
 tools = { path = "../tools" }
 
 [lints]

rust/crates/rusty-claude-cli/src/init.rs

@@ -8,7 +8,7 @@ const STARTER_CLAUDE_JSON: &str = concat!(
     "  }\n",
     "}\n",
 );
-const GITIGNORE_COMMENT: &str = "# Claw Code local artifacts";
+const GITIGNORE_COMMENT: &str = "# Claude Code local artifacts";
 const GITIGNORE_ENTRIES: [&str; 2] = [".claude/settings.local.json", ".claude/sessions/"];
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -164,7 +164,7 @@ pub(crate) fn render_init_claude_md(cwd: &Path) -> String {
     let mut lines = vec![
         "# CLAUDE.md".to_string(),
         String::new(),
-        "This file provides guidance to Claw Code (clawcode.dev) when working with code in this repository.".to_string(),
+        "This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.".to_string(),
         String::new(),
     ];
 

rust/crates/rusty-claude-cli/src/main.rs

@@ -9,6 +9,8 @@ use std::io::{self, Read, Write};
 use std::net::TcpListener;
 use std::path::{Path, PathBuf};
 use std::process::Command;
+use std::sync::mpsc::{self, Receiver, Sender};
+use std::thread::{self, JoinHandle};
 use std::time::{SystemTime, UNIX_EPOCH};
 
 use api::{
@@ -197,7 +199,7 @@ fn parse_args(args: &[String]) -> Result<CliAction, String> {
                 index += 1;
             }
             "-p" => {
-                // Claw Code compat: -p "prompt" = one-shot prompt
+                // Claude Code compat: -p "prompt" = one-shot prompt
                 let prompt = args[index + 1..].join(" ");
                 if prompt.trim().is_empty() {
                     return Err("-p requires a prompt string".to_string());
@@ -211,7 +213,7 @@ fn parse_args(args: &[String]) -> Result<CliAction, String> {
                 });
             }
             "--print" => {
-                // Claw Code compat: --print makes output non-interactive
+                // Claude Code compat: --print makes output non-interactive
                 output_format = CliOutputFormat::Text;
                 index += 1;
             }
@@ -775,10 +777,6 @@ fn format_compact_report(removed: usize, resulting_messages: usize, skipped: boo
     }
 }
 
-fn format_auto_compaction_notice(removed: usize) -> String {
-    format!("[auto-compacted: removed {removed} messages]")
-}
-
 fn parse_git_status_metadata(status: Option<&str>) -> (Option<PathBuf>, Option<String>) {
     let Some(status) = status else {
         return (None, None);
@@ -917,14 +915,7 @@ fn run_resume_command(
                 )),
             })
         }
-        SlashCommand::Bughunter { .. }
+        SlashCommand::Resume { .. }
-        | SlashCommand::Commit
-        | SlashCommand::Pr { .. }
-        | SlashCommand::Issue { .. }
-        | SlashCommand::Ultraplan { .. }
-        | SlashCommand::Teleport { .. }
-        | SlashCommand::DebugToolCall
-        | SlashCommand::Resume { .. }
         | SlashCommand::Model { .. }
         | SlashCommand::Permissions { .. }
         | SlashCommand::Session { .. }
@@ -995,6 +986,61 @@ struct LiveCli {
     session: SessionHandle,
 }
 
+struct HookAbortMonitor {
+    stop_tx: Option<Sender<()>>,
+    join_handle: Option<JoinHandle<()>>,
+}
+
+impl HookAbortMonitor {
+    fn spawn(abort_signal: runtime::HookAbortSignal) -> Self {
+        Self::spawn_with_waiter(abort_signal, move |stop_rx, abort_signal| {
+            let Ok(runtime) = tokio::runtime::Builder::new_current_thread()
+                .enable_all()
+                .build()
+            else {
+                return;
+            };
+
+            runtime.block_on(async move {
+                let wait_for_stop = tokio::task::spawn_blocking(move || {
+                    let _ = stop_rx.recv();
+                });
+
+                tokio::select! {
+                    result = tokio::signal::ctrl_c() => {
+                        if result.is_ok() {
+                            abort_signal.abort();
+                        }
+                    }
+                    _ = wait_for_stop => {}
+                }
+            });
+        })
+    }
+
+    fn spawn_with_waiter<F>(abort_signal: runtime::HookAbortSignal, wait_for_interrupt: F) -> Self
+    where
+        F: FnOnce(Receiver<()>, runtime::HookAbortSignal) + Send + 'static,
+    {
+        let (stop_tx, stop_rx) = mpsc::channel();
+        let join_handle = thread::spawn(move || wait_for_interrupt(stop_rx, abort_signal));
+
+        Self {
+            stop_tx: Some(stop_tx),
+            join_handle: Some(join_handle),
+        }
+    }
+
+    fn stop(mut self) {
+        if let Some(stop_tx) = self.stop_tx.take() {
+            let _ = stop_tx.send(());
+        }
+        if let Some(join_handle) = self.join_handle.take() {
+            let _ = join_handle.join();
+        }
+    }
+}
+
 impl LiveCli {
     fn new(
         model: String,
@@ -1050,7 +1096,34 @@ impl LiveCli {
         )
     }
 
+    fn prepare_turn_runtime(
+        &self,
+        emit_output: bool,
+    ) -> Result<
+        (
+            ConversationRuntime<AnthropicRuntimeClient, CliToolExecutor>,
+            HookAbortMonitor,
+        ),
+        Box<dyn std::error::Error>,
+    > {
+        let hook_abort_signal = runtime::HookAbortSignal::new();
+        let runtime = build_runtime(
+            self.runtime.session().clone(),
+            self.model.clone(),
+            self.system_prompt.clone(),
+            true,
+            emit_output,
+            self.allowed_tools.clone(),
+            self.permission_mode,
+        )?
+        .with_hook_abort_signal(hook_abort_signal.clone());
+        let hook_abort_monitor = HookAbortMonitor::spawn(hook_abort_signal);
+
+        Ok((runtime, hook_abort_monitor))
+    }
+
     fn run_turn(&mut self, input: &str) -> Result<(), Box<dyn std::error::Error>> {
+        let (mut runtime, hook_abort_monitor) = self.prepare_turn_runtime(true)?;
         let mut spinner = Spinner::new();
         let mut stdout = io::stdout();
         spinner.tick(
@@ -1059,21 +1132,17 @@ impl LiveCli {
             &mut stdout,
         )?;
         let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
-        let result = self.runtime.run_turn(input, Some(&mut permission_prompter));
+        let result = runtime.run_turn(input, Some(&mut permission_prompter));
+        hook_abort_monitor.stop();
+        self.runtime = runtime;
         match result {
-            Ok(summary) => {
+            Ok(_) => {
                 spinner.finish(
                     "✨ Done",
                     TerminalRenderer::new().color_theme(),
                     &mut stdout,
                 )?;
                 println!();
-                if let Some(event) = summary.auto_compaction {
-                    println!(
-                        "{}",
-                        format_auto_compaction_notice(event.removed_message_count)
-                    );
-                }
                 self.persist_session()?;
                 Ok(())
             }
@@ -1100,18 +1169,11 @@ impl LiveCli {
     }
 
     fn run_prompt_json(&mut self, input: &str) -> Result<(), Box<dyn std::error::Error>> {
-        let session = self.runtime.session().clone();
+        let (mut runtime, hook_abort_monitor) = self.prepare_turn_runtime(false)?;
-        let mut runtime = build_runtime(
-            session,
-            self.model.clone(),
-            self.system_prompt.clone(),
-            true,
-            false,
-            self.allowed_tools.clone(),
-            self.permission_mode,
-        )?;
         let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
-        let summary = runtime.run_turn(input, Some(&mut permission_prompter))?;
+        let result = runtime.run_turn(input, Some(&mut permission_prompter));
+        hook_abort_monitor.stop();
+        let summary = result?;
         self.runtime = runtime;
         self.persist_session()?;
         println!(
@@ -1120,10 +1182,6 @@ impl LiveCli {
                 "message": final_assistant_text(&summary),
                 "model": self.model,
                 "iterations": summary.iterations,
-                "auto_compaction": summary.auto_compaction.map(|event| json!({
-                    "removed_messages": event.removed_message_count,
-                    "notice": format_auto_compaction_notice(event.removed_message_count),
-                })),
                 "tool_uses": collect_tool_uses(&summary),
                 "tool_results": collect_tool_results(&summary),
                 "usage": {
@@ -1150,34 +1208,6 @@ impl LiveCli {
                 self.print_status();
                 false
             }
-            SlashCommand::Bughunter { scope } => {
-                self.run_bughunter(scope.as_deref())?;
-                false
-            }
-            SlashCommand::Commit => {
-                self.run_commit()?;
-                true
-            }
-            SlashCommand::Pr { context } => {
-                self.run_pr(context.as_deref())?;
-                false
-            }
-            SlashCommand::Issue { context } => {
-                self.run_issue(context.as_deref())?;
-                false
-            }
-            SlashCommand::Ultraplan { task } => {
-                self.run_ultraplan(task.as_deref())?;
-                false
-            }
-            SlashCommand::Teleport { target } => {
-                self.run_teleport(target.as_deref())?;
-                false
-            }
-            SlashCommand::DebugToolCall => {
-                self.run_debug_tool_call()?;
-                false
-            }
             SlashCommand::Compact => {
                 self.compact()?;
                 false
@@ -1497,160 +1527,6 @@ impl LiveCli {
         println!("{}", format_compact_report(removed, kept, skipped));
         Ok(())
     }
-
-    fn run_internal_prompt_text(
-        &self,
-        prompt: &str,
-        enable_tools: bool,
-    ) -> Result<String, Box<dyn std::error::Error>> {
-        let session = self.runtime.session().clone();
-        let mut runtime = build_runtime(
-            session,
-            self.model.clone(),
-            self.system_prompt.clone(),
-            enable_tools,
-            false,
-            self.allowed_tools.clone(),
-            self.permission_mode,
-        )?;
-        let mut permission_prompter = CliPermissionPrompter::new(self.permission_mode);
-        let summary = runtime.run_turn(prompt, Some(&mut permission_prompter))?;
-        Ok(final_assistant_text(&summary).trim().to_string())
-    }
-
-    fn run_bughunter(&self, scope: Option<&str>) -> Result<(), Box<dyn std::error::Error>> {
-        let scope = scope.unwrap_or("the current repository");
-        let prompt = format!(
-            "You are /bughunter. Inspect {scope} and identify the most likely bugs or correctness issues. Prioritize concrete findings with file paths, severity, and suggested fixes. Use tools if needed."
-        );
-        println!("{}", self.run_internal_prompt_text(&prompt, true)?);
-        Ok(())
-    }
-
-    fn run_ultraplan(&self, task: Option<&str>) -> Result<(), Box<dyn std::error::Error>> {
-        let task = task.unwrap_or("the current repo work");
-        let prompt = format!(
-            "You are /ultraplan. Produce a deep multi-step execution plan for {task}. Include goals, risks, implementation sequence, verification steps, and rollback considerations. Use tools if needed."
-        );
-        println!("{}", self.run_internal_prompt_text(&prompt, true)?);
-        Ok(())
-    }
-
-    fn run_teleport(&self, target: Option<&str>) -> Result<(), Box<dyn std::error::Error>> {
-        let Some(target) = target.map(str::trim).filter(|value| !value.is_empty()) else {
-            println!("Usage: /teleport <symbol-or-path>");
-            return Ok(());
-        };
-
-        println!("{}", render_teleport_report(target)?);
-        Ok(())
-    }
-
-    fn run_debug_tool_call(&self) -> Result<(), Box<dyn std::error::Error>> {
-        println!("{}", render_last_tool_debug_report(self.runtime.session())?);
-        Ok(())
-    }
-
-    fn run_commit(&mut self) -> Result<(), Box<dyn std::error::Error>> {
-        let status = git_output(&["status", "--short"])?;
-        if status.trim().is_empty() {
-            println!("Commit\n  Result           skipped\n  Reason           no workspace changes");
-            return Ok(());
-        }
-
-        git_status_ok(&["add", "-A"])?;
-        let staged_stat = git_output(&["diff", "--cached", "--stat"])?;
-        let prompt = format!(
-            "Generate a git commit message in plain text Lore format only. Base it on this staged diff summary:\n\n{}\n\nRecent conversation context:\n{}",
-            truncate_for_prompt(&staged_stat, 8_000),
-            recent_user_context(self.runtime.session(), 6)
-        );
-        let message = sanitize_generated_message(&self.run_internal_prompt_text(&prompt, false)?);
-        if message.trim().is_empty() {
-            return Err("generated commit message was empty".into());
-        }
-
-        let path = write_temp_text_file("claw-commit-message.txt", &message)?;
-        let output = Command::new("git")
-            .args(["commit", "--file"])
-            .arg(&path)
-            .current_dir(env::current_dir()?)
-            .output()?;
-        if !output.status.success() {
-            let stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
-            return Err(format!("git commit failed: {stderr}").into());
-        }
-
-        println!(
-            "Commit\n  Result           created\n  Message file     {}\n\n{}",
-            path.display(),
-            message.trim()
-        );
-        Ok(())
-    }
-
-    fn run_pr(&self, context: Option<&str>) -> Result<(), Box<dyn std::error::Error>> {
-        let staged = git_output(&["diff", "--stat"])?;
-        let prompt = format!(
-            "Generate a pull request title and body from this conversation and diff summary. Output plain text in this format exactly:\nTITLE: <title>\nBODY:\n<body markdown>\n\nContext hint: {}\n\nDiff summary:\n{}",
-            context.unwrap_or("none"),
-            truncate_for_prompt(&staged, 10_000)
-        );
-        let draft = sanitize_generated_message(&self.run_internal_prompt_text(&prompt, false)?);
-        let (title, body) = parse_titled_body(&draft)
-            .ok_or_else(|| "failed to parse generated PR title/body".to_string())?;
-
-        if command_exists("gh") {
-            let body_path = write_temp_text_file("claw-pr-body.md", &body)?;
-            let output = Command::new("gh")
-                .args(["pr", "create", "--title", &title, "--body-file"])
-                .arg(&body_path)
-                .current_dir(env::current_dir()?)
-                .output()?;
-            if output.status.success() {
-                let stdout = String::from_utf8_lossy(&output.stdout).trim().to_string();
-                println!(
-                    "PR\n  Result           created\n  Title            {title}\n  URL              {}",
-                    if stdout.is_empty() { "<unknown>" } else { &stdout }
-                );
-                return Ok(());
-            }
-        }
-
-        println!("PR draft\n  Title            {title}\n\n{body}");
-        Ok(())
-    }
-
-    fn run_issue(&self, context: Option<&str>) -> Result<(), Box<dyn std::error::Error>> {
-        let prompt = format!(
-            "Generate a GitHub issue title and body from this conversation. Output plain text in this format exactly:\nTITLE: <title>\nBODY:\n<body markdown>\n\nContext hint: {}\n\nConversation context:\n{}",
-            context.unwrap_or("none"),
-            truncate_for_prompt(&recent_user_context(self.runtime.session(), 10), 10_000)
-        );
-        let draft = sanitize_generated_message(&self.run_internal_prompt_text(&prompt, false)?);
-        let (title, body) = parse_titled_body(&draft)
-            .ok_or_else(|| "failed to parse generated issue title/body".to_string())?;
-
-        if command_exists("gh") {
-            let body_path = write_temp_text_file("claw-issue-body.md", &body)?;
-            let output = Command::new("gh")
-                .args(["issue", "create", "--title", &title, "--body-file"])
-                .arg(&body_path)
-                .current_dir(env::current_dir()?)
-                .output()?;
-            if output.status.success() {
-                let stdout = String::from_utf8_lossy(&output.stdout).trim().to_string();
-                println!(
-                    "Issue\n  Result           created\n  Title            {title}\n  URL              {}",
-                    if stdout.is_empty() { "<unknown>" } else { &stdout }
-                );
-                return Ok(());
-            }
-        }
-
-        println!("Issue draft\n  Title            {title}\n\n{body}");
-        Ok(())
-    }
 }
 
 fn sessions_dir() -> Result<PathBuf, Box<dyn std::error::Error>> {
@@ -2002,206 +1878,6 @@ fn render_diff_report() -> Result<String, Box<dyn std::error::Error>> {
     Ok(format!("Diff\n\n{}", diff.trim_end()))
 }
 
-fn render_teleport_report(target: &str) -> Result<String, Box<dyn std::error::Error>> {
-    let cwd = env::current_dir()?;
-
-    let file_list = Command::new("rg")
-        .args(["--files"])
-        .current_dir(&cwd)
-        .output()?;
-    let file_matches = if file_list.status.success() {
-        String::from_utf8(file_list.stdout)?
-            .lines()
-            .filter(|line| line.contains(target))
-            .take(10)
-            .map(ToOwned::to_owned)
-            .collect::<Vec<_>>()
-    } else {
-        Vec::new()
-    };
-
-    let content_output = Command::new("rg")
-        .args(["-n", "-S", "--color", "never", target, "."])
-        .current_dir(&cwd)
-        .output()?;
-
-    let mut lines = vec![format!("Teleport\n  Target           {target}")];
-    if !file_matches.is_empty() {
-        lines.push(String::new());
-        lines.push("File matches".to_string());
-        lines.extend(file_matches.into_iter().map(|path| format!("  {path}")));
-    }
-
-    if content_output.status.success() {
-        let matches = String::from_utf8(content_output.stdout)?;
-        if !matches.trim().is_empty() {
-            lines.push(String::new());
-            lines.push("Content matches".to_string());
-            lines.push(truncate_for_prompt(&matches, 4_000));
-        }
-    }
-
-    if lines.len() == 1 {
-        lines.push("  Result           no matches found".to_string());
-    }
-
-    Ok(lines.join("\n"))
-}
-
-fn render_last_tool_debug_report(session: &Session) -> Result<String, Box<dyn std::error::Error>> {
-    let last_tool_use = session
-        .messages
-        .iter()
-        .rev()
-        .find_map(|message| {
-            message.blocks.iter().rev().find_map(|block| match block {
-                ContentBlock::ToolUse { id, name, input } => {
-                    Some((id.clone(), name.clone(), input.clone()))
-                }
-                _ => None,
-            })
-        })
-        .ok_or_else(|| "no prior tool call found in session".to_string())?;
-
-    let tool_result = session.messages.iter().rev().find_map(|message| {
-        message.blocks.iter().rev().find_map(|block| match block {
-            ContentBlock::ToolResult {
-                tool_use_id,
-                tool_name,
-                output,
-                is_error,
-            } if tool_use_id == &last_tool_use.0 => {
-                Some((tool_name.clone(), output.clone(), *is_error))
-            }
-            _ => None,
-        })
-    });
-
-    let mut lines = vec![
-        "Debug tool call".to_string(),
-        format!("  Tool id          {}", last_tool_use.0),
-        format!("  Tool name        {}", last_tool_use.1),
-        "  Input".to_string(),
-        indent_block(&last_tool_use.2, 4),
-    ];
-
-    match tool_result {
-        Some((tool_name, output, is_error)) => {
-            lines.push("  Result".to_string());
-            lines.push(format!("    name           {tool_name}"));
-            lines.push(format!(
-                "    status         {}",
-                if is_error { "error" } else { "ok" }
-            ));
-            lines.push(indent_block(&output, 4));
-        }
-        None => lines.push("  Result           missing tool result".to_string()),
-    }
-
-    Ok(lines.join("\n"))
-}
-
-fn indent_block(value: &str, spaces: usize) -> String {
-    let indent = " ".repeat(spaces);
-    value
-        .lines()
-        .map(|line| format!("{indent}{line}"))
-        .collect::<Vec<_>>()
-        .join("\n")
-}
-
-fn git_output(args: &[&str]) -> Result<String, Box<dyn std::error::Error>> {
-    let output = Command::new("git")
-        .args(args)
-        .current_dir(env::current_dir()?)
-        .output()?;
-    if !output.status.success() {
-        let stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
-        return Err(format!("git {} failed: {stderr}", args.join(" ")).into());
-    }
-    Ok(String::from_utf8(output.stdout)?)
-}
-
-fn git_status_ok(args: &[&str]) -> Result<(), Box<dyn std::error::Error>> {
-    let output = Command::new("git")
-        .args(args)
-        .current_dir(env::current_dir()?)
-        .output()?;
-    if !output.status.success() {
-        let stderr = String::from_utf8_lossy(&output.stderr).trim().to_string();
-        return Err(format!("git {} failed: {stderr}", args.join(" ")).into());
-    }
-    Ok(())
-}
-
-fn command_exists(name: &str) -> bool {
-    Command::new("which")
-        .arg(name)
-        .output()
-        .map(|output| output.status.success())
-        .unwrap_or(false)
-}
-
-fn write_temp_text_file(
-    filename: &str,
-    contents: &str,
-) -> Result<PathBuf, Box<dyn std::error::Error>> {
-    let path = env::temp_dir().join(filename);
-    fs::write(&path, contents)?;
-    Ok(path)
-}
-
-fn recent_user_context(session: &Session, limit: usize) -> String {
-    let requests = session
-        .messages
-        .iter()
-        .filter(|message| message.role == MessageRole::User)
-        .filter_map(|message| {
-            message.blocks.iter().find_map(|block| match block {
-                ContentBlock::Text { text } => Some(text.trim().to_string()),
-                _ => None,
-            })
-        })
-        .rev()
-        .take(limit)
-        .collect::<Vec<_>>();
-
-    if requests.is_empty() {
-        "<no prior user messages>".to_string()
-    } else {
-        requests
-            .into_iter()
-            .rev()
-            .enumerate()
-            .map(|(index, text)| format!("{}. {}", index + 1, text))
-            .collect::<Vec<_>>()
-            .join("\n")
-    }
-}
-
-fn truncate_for_prompt(value: &str, limit: usize) -> String {
-    if value.chars().count() <= limit {
-        value.trim().to_string()
-    } else {
-        let truncated = value.chars().take(limit).collect::<String>();
-        format!("{}\n…[truncated]", truncated.trim_end())
-    }
-}
-
-fn sanitize_generated_message(value: &str) -> String {
-    value.trim().trim_matches('`').trim().replace("\r\n", "\n")
-}
-
-fn parse_titled_body(value: &str) -> Option<(String, String)> {
-    let normalized = sanitize_generated_message(value);
-    let title = normalized
-        .lines()
-        .find_map(|line| line.strip_prefix("TITLE:").map(str::trim))?;
-    let body_start = normalized.find("BODY:")?;
-    let body = normalized[body_start + "BODY:".len()..].trim();
-    Some((title.to_string(), body.to_string()))
-}
-
 fn render_version_report() -> String {
     let git_sha = GIT_SHA.unwrap_or("unknown");
     let target = BUILD_TARGET.unwrap_or("unknown");
@@ -2325,14 +2001,52 @@ fn build_runtime(
     permission_mode: PermissionMode,
 ) -> Result<ConversationRuntime<AnthropicRuntimeClient, CliToolExecutor>, Box<dyn std::error::Error>>
 {
-    Ok(ConversationRuntime::new_with_features(
+    let feature_config = build_runtime_feature_config()?;
+    let mut runtime = ConversationRuntime::new_with_features(
         session,
         AnthropicRuntimeClient::new(model, enable_tools, emit_output, allowed_tools.clone())?,
         CliToolExecutor::new(allowed_tools, emit_output),
-        permission_policy(permission_mode),
+        permission_policy(permission_mode, &feature_config),
         system_prompt,
-        build_runtime_feature_config()?,
+        feature_config,
-    ))
+    );
+    if emit_output {
+        runtime = runtime.with_hook_progress_reporter(Box::new(CliHookProgressReporter));
+    }
+    Ok(runtime)
+}
+
+struct CliHookProgressReporter;
+
+impl runtime::HookProgressReporter for CliHookProgressReporter {
+    fn on_event(&mut self, event: &runtime::HookProgressEvent) {
+        match event {
+            runtime::HookProgressEvent::Started {
+                event,
+                tool_name,
+                command,
+            } => eprintln!(
+                "[hook {event_name}] {tool_name}: {command}",
+                event_name = event.as_str()
+            ),
+            runtime::HookProgressEvent::Completed {
+                event,
+                tool_name,
+                command,
+            } => eprintln!(
+                "[hook done {event_name}] {tool_name}: {command}",
+                event_name = event.as_str()
+            ),
+            runtime::HookProgressEvent::Cancelled {
+                event,
+                tool_name,
+                command,
+            } => eprintln!(
+                "[hook cancelled {event_name}] {tool_name}: {command}",
+                event_name = event.as_str()
+            ),
+        }
+    }
 }
 
 struct CliPermissionPrompter {
@@ -2355,6 +2069,9 @@ impl runtime::PermissionPrompter for CliPermissionPrompter {
         println!("  Tool             {}", request.tool_name);
         println!("  Current mode     {}", self.current_mode.as_str());
         println!("  Required mode    {}", request.required_mode.as_str());
+        if let Some(reason) = &request.reason {
+            println!("  Reason           {reason}");
+        }
         println!("  Input            {}", request.input);
         print!("Approve this tool call? [y/N]: ");
         let _ = io::stdout().flush();
@@ -2767,13 +2484,15 @@ fn format_bash_result(icon: &str, parsed: &serde_json::Value) -> String {
         .get("backgroundTaskId")
         .and_then(|value| value.as_str())
     {
-        lines[0].push_str(&format!(" backgrounded ({task_id})"));
+        use std::fmt::Write as _;
+        let _ = write!(lines[0], " backgrounded ({task_id})");
     } else if let Some(status) = parsed
         .get("returnCodeInterpretation")
         .and_then(|value| value.as_str())
         .filter(|status| !status.is_empty())
     {
-        lines[0].push_str(&format!(" {status}"));
+        use std::fmt::Write as _;
+        let _ = write!(lines[0], " {status}");
     }
 
     if let Some(stdout) = parsed.get("stdout").and_then(|value| value.as_str()) {
@@ -2795,15 +2514,15 @@ fn format_read_result(icon: &str, parsed: &serde_json::Value) -> String {
     let path = extract_tool_path(file);
     let start_line = file
         .get("startLine")
-        .and_then(|value| value.as_u64())
+        .and_then(serde_json::Value::as_u64)
         .unwrap_or(1);
     let num_lines = file
         .get("numLines")
-        .and_then(|value| value.as_u64())
+        .and_then(serde_json::Value::as_u64)
         .unwrap_or(0);
     let total_lines = file
         .get("totalLines")
-        .and_then(|value| value.as_u64())
+        .and_then(serde_json::Value::as_u64)
         .unwrap_or(num_lines);
     let content = file
         .get("content")
@@ -2829,8 +2548,7 @@ fn format_write_result(icon: &str, parsed: &serde_json::Value) -> String {
     let line_count = parsed
         .get("content")
         .and_then(|value| value.as_str())
-        .map(|content| content.lines().count())
+        .map_or(0, |content| content.lines().count());
-        .unwrap_or(0);
     format!(
         "{icon} \x1b[1;32m✏️ {} {path}\x1b[0m \x1b[2m({line_count} lines)\x1b[0m",
         if kind == "create" { "Wrote" } else { "Updated" },
@@ -2861,7 +2579,7 @@ fn format_edit_result(icon: &str, parsed: &serde_json::Value) -> String {
     let path = extract_tool_path(parsed);
     let suffix = if parsed
         .get("replaceAll")
-        .and_then(|value| value.as_bool())
+        .and_then(serde_json::Value::as_bool)
         .unwrap_or(false)
     {
         " (replace all)"
@@ -2889,7 +2607,7 @@ fn format_edit_result(icon: &str, parsed: &serde_json::Value) -> String {
 fn format_glob_result(icon: &str, parsed: &serde_json::Value) -> String {
     let num_files = parsed
         .get("numFiles")
-        .and_then(|value| value.as_u64())
+        .and_then(serde_json::Value::as_u64)
         .unwrap_or(0);
     let filenames = parsed
         .get("filenames")
@@ -2913,11 +2631,11 @@ fn format_glob_result(icon: &str, parsed: &serde_json::Value) -> String {
 fn format_grep_result(icon: &str, parsed: &serde_json::Value) -> String {
     let num_matches = parsed
         .get("numMatches")
-        .and_then(|value| value.as_u64())
+        .and_then(serde_json::Value::as_u64)
         .unwrap_or(0);
     let num_files = parsed
         .get("numFiles")
-        .and_then(|value| value.as_u64())
+        .and_then(serde_json::Value::as_u64)
         .unwrap_or(0);
     let content = parsed
         .get("content")
@@ -3076,12 +2794,14 @@ impl ToolExecutor for CliToolExecutor {
     }
 }
 
-fn permission_policy(mode: PermissionMode) -> PermissionPolicy {
+fn permission_policy(
-    tool_permission_specs()
+    mode: PermissionMode,
-        .into_iter()
+    feature_config: &runtime::RuntimeFeatureConfig,
-        .fold(PermissionPolicy::new(mode), |policy, spec| {
+) -> PermissionPolicy {
-            policy.with_tool_requirement(spec.name, spec.required_permission)
+    tool_permission_specs().into_iter().fold(
-        })
+        PermissionPolicy::new(mode).with_permission_rules(feature_config.permission_rules()),
+        |policy, spec| policy.with_tool_requirement(spec.name, spec.required_permission),
+    )
 }
 
 fn tool_permission_specs() -> Vec<ToolSpec> {
@@ -3230,12 +2950,17 @@ mod tests {
         normalize_permission_mode, parse_args, parse_git_status_metadata, print_help_to,
         push_output_block, render_config_report, render_memory_report, render_repl_help,
         resolve_model_alias, response_to_events, resume_supported_slash_commands, status_context,
-        CliAction, CliOutputFormat, SlashCommand, StatusUsage, DEFAULT_MODEL,
+        CliAction, CliOutputFormat, HookAbortMonitor, SlashCommand, StatusUsage, DEFAULT_MODEL,
     };
     use api::{MessageResponse, OutputContentBlock, Usage};
-    use runtime::{AssistantEvent, ContentBlock, ConversationMessage, MessageRole, PermissionMode};
+    use runtime::{
+        AssistantEvent, ContentBlock, ConversationMessage, HookAbortSignal, MessageRole,
+        PermissionMode,
+    };
     use serde_json::json;
     use std::path::PathBuf;
+    use std::sync::mpsc;
+    use std::time::Duration;
 
     #[test]
     fn defaults_to_repl_when_no_args() {
@@ -3894,4 +3619,43 @@ mod tests {
                 if name == "read_file" && input == "{\"path\":\"rust/Cargo.toml\"}"
         ));
     }
+
+    #[test]
+    fn hook_abort_monitor_stops_without_aborting() {
+        let abort_signal = HookAbortSignal::new();
+        let (ready_tx, ready_rx) = mpsc::channel();
+        let monitor = HookAbortMonitor::spawn_with_waiter(
+            abort_signal.clone(),
+            move |stop_rx, abort_signal| {
+                ready_tx.send(()).expect("ready signal");
+                let _ = stop_rx.recv();
+                assert!(!abort_signal.is_aborted());
+            },
+        );
+
+        ready_rx.recv().expect("waiter should be ready");
+        monitor.stop();
+
+        assert!(!abort_signal.is_aborted());
+    }
+
+    #[test]
+    fn hook_abort_monitor_propagates_interrupt() {
+        let abort_signal = HookAbortSignal::new();
+        let (done_tx, done_rx) = mpsc::channel();
+        let monitor = HookAbortMonitor::spawn_with_waiter(
+            abort_signal.clone(),
+            move |_stop_rx, abort_signal| {
+                abort_signal.abort();
+                done_tx.send(()).expect("done signal");
+            },
+        );
+
+        done_rx
+            .recv_timeout(Duration::from_secs(1))
+            .expect("interrupt should complete");
+        monitor.stop();
+
+        assert!(abort_signal.is_aborted());
+    }
 }

rust/crates/rusty-claude-cli/src/render.rs

@@ -286,7 +286,7 @@ impl TerminalRenderer {
     ) {
         match event {
             Event::Start(Tag::Heading { level, .. }) => {
-                self.start_heading(state, level as u8, output)
+                Self::start_heading(state, level as u8, output);
             }
             Event::End(TagEnd::Paragraph) => output.push_str("\n\n"),
             Event::Start(Tag::BlockQuote(..)) => self.start_quote(state, output),
@@ -426,7 +426,7 @@ impl TerminalRenderer {
         }
     }
 
-    fn start_heading(&self, state: &mut RenderState, level: u8, output: &mut String) {
+    fn start_heading(state: &mut RenderState, level: u8, output: &mut String) {
         state.heading_level = Some(level);
         if !output.is_empty() {
             output.push('\n');

rust/crates/tools/src/lib.rs

@@ -323,7 +323,7 @@ pub fn mvp_tool_specs() -> Vec<ToolSpec> {
         },
         ToolSpec {
             name: "Config",
-            description: "Get or set Claw Code settings.",
+            description: "Get or set Claude Code settings.",
             input_schema: json!({
                 "type": "object",
                 "properties": {
@@ -1537,7 +1537,7 @@ fn allowed_tools_for_subagent(subagent_type: &str) -> BTreeSet<String> {
             "SendUserMessage",
             "PowerShell",
         ],
-        "claw-code-guide" => vec![
+        "claude-code-guide" => vec![
             "read_file",
             "glob_search",
             "grep_search",
@@ -2087,7 +2087,7 @@ fn normalize_subagent_type(subagent_type: Option<&str>) -> String {
         "verification" | "verificationagent" | "verify" | "verifier" => {
             String::from("Verification")
         }
-        "claudecodeguide" | "claudecodeguideagent" | "guide" => String::from("claw-code-guide"),
+        "claudecodeguide" | "claudecodeguideagent" | "guide" => String::from("claude-code-guide"),
         "statusline" | "statuslinesetup" => String::from("statusline-setup"),
         _ => trimmed.to_string(),
     }