auto: save WIP progress from rcc session

2026-04-01 04:01:37 +00:00
14 changed files with 316 additions and 1191 deletions
--- a/PARITY.md
+++ b/PARITY.md
@@ -1,214 +1,253 @@
-# PARITY GAP ANALYSIS
+# PARITY Gap Analysis
-Scope: read-only comparison between the original TypeScript source at `/home/bellman/Workspace/claude-code/src/` and the Rust port under `rust/crates/`.
+Date: 2026-04-01
-Method: compared feature surfaces, registries, entrypoints, and runtime plumbing only. No TypeScript source was copied.
+Scope compared:
 - Upstream TypeScript: `/home/bellman/Workspace/claude-code/src/`
 - Rust port: `rust/crates/`
 Method:
 - Read-only comparison only.
 - No upstream source was copied into this repo.
 - This is a focused feature-gap report for `tools`, `hooks`, `plugins`, `skills`, `cli`, `assistant`, and `services`.
 ## Executive summary
-The Rust port has a good foundation for:
+The Rust port has a solid core for:
- Anthropic API/OAuth basics
+- basic prompt/REPL flow
- local conversation/session state
+- session/runtime state
- a core tool loop
+- Anthropic API/OAuth plumbing
- MCP stdio/bootstrap support
+- a compact MVP tool registry
 - CLAUDE.md discovery
- a small but usable built-in tool set
+- MCP config parsing/bootstrap primitives
-It is **not feature-parity** with the TypeScript CLI.
+But it is still materially behind the TypeScript implementation in six major areas:
 1. **Tools surface area** is much smaller.
 2. **Hook execution** is largely missing; Rust mostly loads hook config but does not run a TS-style PreToolUse/PostToolUse pipeline.
 3. **Plugins** are effectively absent in Rust.
 4. **Skills** are only partially implemented in Rust via direct `SKILL.md` loading; there is no comparable skills command/discovery/registration surface.
 5. **CLI** breadth is much narrower in Rust.
 6. **Assistant/tool orchestration** lacks the richer streaming concurrency, hook integration, and orchestration behavior present in TS.
 7. **Services** in Rust cover API/auth/runtime basics, but many higher-level TS services are missing.
-Largest gaps:
+## Critical bug status on this branch
- **plugins** are effectively absent in Rust
+
- **hooks** are parsed but not executed in Rust
+Targeted critical items requested by the user:
- **CLI breadth** is much narrower in Rust
+- **Prompt mode tools enabled**: fixed in `rust/crates/rusty-claude-cli/src/main.rs:75-82`
- **skills** are local-file only in Rust, without the TS registry/bundled pipeline
+- **Default permission mode = danger-full-access**: fixed in `rust/crates/rusty-claude-cli/src/args.rs:12-16`, `rust/crates/rusty-claude-cli/src/main.rs:348-353`, and starter config `rust/crates/rusty-claude-cli/src/init.rs:4-9`
- **assistant orchestration** lacks TS hook-aware orchestration and remote/structured transports
+- **Tool input `{}` prefix bug**: fixed/guarded in streaming vs non-stream paths at `rust/crates/rusty-claude-cli/src/main.rs:2211-2256`
- **services** beyond core API/OAuth/MCP are mostly missing in Rust
+- **Unlimited max_iterations**: already present at `rust/crates/runtime/src/conversation.rs:143-148` with `usize::MAX` initialization at `rust/crates/runtime/src/conversation.rs:119`
 Build/test/manual verification is tracked separately below and must pass before the branch is considered done.
 ---
-## tools/
+## 1) tools/
-### TS exists
+### Upstream TS has
-Evidence:
+- Large per-tool module surface under `src/tools/`, including agent/task tools, AskUserQuestion, MCP tools, plan/worktree tools, REPL, schedule/task tools, synthetic output, brief/upload, and more.
- `src/tools/` contains broad tool families including `AgentTool`, `AskUserQuestionTool`, `BashTool`, `ConfigTool`, `FileReadTool`, `FileWriteTool`, `GlobTool`, `GrepTool`, `LSPTool`, `ListMcpResourcesTool`, `MCPTool`, `McpAuthTool`, `ReadMcpResourceTool`, `RemoteTriggerTool`, `ScheduleCronTool`, `SkillTool`, `Task*`, `Team*`, `TodoWriteTool`, `ToolSearchTool`, `WebFetchTool`, `WebSearchTool`.
+- Evidence:
- Tool execution/orchestration is split across `src/services/tools/StreamingToolExecutor.ts`, `src/services/tools/toolExecution.ts`, `src/services/tools/toolHooks.ts`, and `src/services/tools/toolOrchestration.ts`.
+  - `src/tools/AgentTool/AgentTool.tsx`
  - `src/tools/AskUserQuestionTool/AskUserQuestionTool.tsx`
  - `src/tools/ListMcpResourcesTool/ListMcpResourcesTool.ts`
  - `src/tools/ReadMcpResourceTool/ReadMcpResourceTool.ts`
  - `src/tools/EnterPlanModeTool/EnterPlanModeTool.ts`
  - `src/tools/ExitPlanModeTool/ExitPlanModeV2Tool.ts`
  - `src/tools/EnterWorktreeTool/EnterWorktreeTool.ts`
  - `src/tools/ExitWorktreeTool/ExitWorktreeTool.ts`
  - `src/tools/RemoteTriggerTool/RemoteTriggerTool.ts`
  - `src/tools/ScheduleCronTool/*`
  - `src/tools/TaskCreateTool/*`, `TaskGetTool/*`, `TaskListTool/*`, `TaskOutputTool/*`
-### Rust exists
+### Rust currently has
-Evidence:
+- A single MVP registry in `rust/crates/tools/src/lib.rs:53-371`.
- Tool registry is centralized in `rust/crates/tools/src/lib.rs` via `mvp_tool_specs()`.
+- Implemented tools include `bash`, `read_file`, `write_file`, `edit_file`, `glob_search`, `grep_search`, `WebFetch`, `WebSearch`, `TodoWrite`, `Skill`, `Agent`, `ToolSearch`, `NotebookEdit`, `Sleep`, `SendUserMessage`, `Config`, `StructuredOutput`, `REPL`, `PowerShell`.
 - Current built-ins include shell/file/search/web/todo/skill/agent/config/notebook/repl/powershell primitives.
 - Runtime execution is wired through `rust/crates/tools/src/lib.rs` and `rust/crates/runtime/src/conversation.rs`.
 ### Missing or broken in Rust
- No Rust equivalents for major TS tools such as `AskUserQuestionTool`, `LSPTool`, `ListMcpResourcesTool`, `MCPTool`, `McpAuthTool`, `ReadMcpResourceTool`, `RemoteTriggerTool`, `ScheduleCronTool`, `Task*`, `Team*`, and several workflow/system tools.
+- **Missing large chunks of the upstream tool catalog**: I did not find Rust equivalents for AskUserQuestion, MCP resource listing/reading tools, plan/worktree entry/exit tools, task management tools, remote trigger, synthetic output, or schedule/cron tools.
- Rust tool surface is still explicitly an MVP registry, not a parity registry.
+- **Tool decomposition is much coarser**: TS isolates tool-specific validation/security/UI behavior per tool module; Rust centralizes almost everything in one file (`rust/crates/tools/src/lib.rs`).
- Rust lacks TS’s layered tool orchestration split.
+- **Likely parity impact**: lower fidelity tool prompting, weaker per-tool behavior specialization, and fewer native tool choices exposed to the model.
 **Status:** partial core only.
 ---
-## hooks/
+## 2) hooks/
-### TS exists
+### Upstream TS has
-Evidence:
+- A full permission and tool-hook system with **PermissionRequest**, **PreToolUse**, **PostToolUse**, and failure/cancellation handling.
- Hook command surface under `src/commands/hooks/`.
+- Evidence:
- Runtime hook machinery in `src/services/tools/toolHooks.ts` and `src/services/tools/toolExecution.ts`.
+  - `src/hooks/toolPermission/PermissionContext.ts:25,222`
- TS supports `PreToolUse`, `PostToolUse`, and broader hook-driven behaviors configured through settings and documented in `src/skills/bundled/updateConfig.ts`.
+  - `src/hooks/toolPermission/handlers/coordinatorHandler.ts:32-38`
  - `src/hooks/toolPermission/handlers/interactiveHandler.ts:412-429`
  - `src/services/tools/toolHooks.ts:39,435`
  - `src/services/tools/toolExecution.ts:800,1074,1483`
  - `src/commands/hooks/index.ts:5-8`
-### Rust exists
+### Rust currently has
-Evidence:
+- Hook data is **loaded/merged from config** and visible in reports:
- Hook config is parsed and merged in `rust/crates/runtime/src/config.rs`.
+  - `rust/crates/runtime/src/config.rs:786-797,829-838`
- Hook config can be inspected via Rust config reporting in `rust/crates/commands/src/lib.rs` and `rust/crates/rusty-claude-cli/src/main.rs`.
+  - `rust/crates/rusty-claude-cli/src/main.rs:1665-1669`
- Prompt guidance mentions hooks in `rust/crates/runtime/src/prompt.rs`.
+- The system prompt acknowledges user-configured hooks:
  - `rust/crates/runtime/src/prompt.rs:452-459`
 ### Missing or broken in Rust
- No actual hook execution pipeline in `rust/crates/runtime/src/conversation.rs`.
+- **No comparable hook execution pipeline found** in the Rust runtime conversation/tool execution path.
- No PreToolUse/PostToolUse mutation/deny/rewrite/result-hook behavior.
+- `rust/crates/runtime/src/conversation.rs:151-208` goes straight from assistant tool_use -> permission check -> tool execute -> tool_result, without TS-style PreToolUse/PostToolUse processing.
- No Rust `/hooks` parity command.
+- I did **not** find Rust counterparts to TS files like `toolHooks.ts` or `PermissionContext.ts` that execute hook callbacks and alter/block tool behavior.
-
+- Result: Rust appears to support **hook configuration visibility**, but not full **hook behavior parity**.
 **Status:** config-only; runtime behavior missing.
 ---
-## plugins/
+## 3) plugins/
-### TS exists
+### Upstream TS has
-Evidence:
+- Built-in and bundled plugin registration plus CLI/service support for validate/list/install/uninstall/enable/disable/update flows.
- Built-in plugin scaffolding in `src/plugins/builtinPlugins.ts` and `src/plugins/bundled/index.ts`.
+- Evidence:
- Plugin lifecycle/services in `src/services/plugins/PluginInstallationManager.ts` and `src/services/plugins/pluginOperations.ts`.
+  - `src/plugins/builtinPlugins.ts:7-17,149-150`
- CLI/plugin command surface under `src/commands/plugin/` and `src/commands/reload-plugins/`.
+  - `src/plugins/bundled/index.ts:7-22`
  - `src/cli/handlers/plugins.ts:51,101,157,668`
  - `src/services/plugins/pluginOperations.ts:16,54,306,435,713`
  - `src/services/plugins/pluginCliCommands.ts:7,36`
-### Rust exists
+### Rust currently has
-Evidence:
+- I did **not** find a dedicated plugin crate/module/handler under `rust/crates/`.
- No dedicated plugin subsystem appears under `rust/crates/`.
+- The Rust crate layout is only `api`, `commands`, `compat-harness`, `runtime`, `rusty-claude-cli`, and `tools`.
 - Repo-wide Rust references to plugins are effectively absent beyond text/help mentions.
 ### Missing or broken in Rust
- No plugin loader.
+- **Plugin loading/install/update/validation is missing.**
- No marketplace install/update/enable/disable flow.
+- **No plugin CLI surface found** comparable to `claude plugin ...`.
- No `/plugin` or `/reload-plugins` parity.
+- **No plugin runtime refresh/reconciliation layer found**.
- No plugin-provided hook/tool/command/MCP extension path.
+- This is one of the largest parity gaps.
 **Status:** missing.
 ---
-## skills/ and CLAUDE.md discovery
+## 4) skills/
-### TS exists
+### Upstream TS has
-Evidence:
+- Bundled skills registry and loader integration, plus a `skills` command.
- Skill loading/registry pipeline in `src/skills/loadSkillsDir.ts`, `src/skills/bundledSkills.ts`, and `src/skills/mcpSkillBuilders.ts`.
+- Evidence:
- Bundled skills under `src/skills/bundled/`.
+  - `src/commands/skills/index.ts:6`
- Skills command surface under `src/commands/skills/`.
+  - `src/skills/bundledSkills.ts:44,99,107,114`
  - `src/skills/loadSkillsDir.ts:65`
  - `src/skills/mcpSkillBuilders.ts:4-21,40`
-### Rust exists
+### Rust currently has
-Evidence:
+- A `Skill` tool that loads local `SKILL.md` files directly:
- `Skill` tool in `rust/crates/tools/src/lib.rs` resolves and reads local `SKILL.md` files.
+  - `rust/crates/tools/src/lib.rs:1244-1255`
- CLAUDE.md discovery is implemented in `rust/crates/runtime/src/prompt.rs`.
+  - `rust/crates/tools/src/lib.rs:1288-1323`
- Rust supports `/memory` and `/init` via `rust/crates/commands/src/lib.rs` and `rust/crates/rusty-claude-cli/src/main.rs`.
+- CLAUDE.md / instruction discovery exists in runtime prompt loading:
  - `rust/crates/runtime/src/prompt.rs:203-208`
 ### Missing or broken in Rust
- No bundled skill registry equivalent.
+- **No Rust `/skills` slash command** in `rust/crates/commands/src/lib.rs:41-166`.
- No `/skills` command.
+- **No visible bundled-skill registry equivalent** to TS `bundledSkills.ts` / `loadSkillsDir.ts` / `mcpSkillBuilders.ts`.
- No MCP skill-builder pipeline.
+- Current Rust skill support is closer to **direct file loading** than full upstream **skill discovery/registration/command integration**.
 - No TS-style live skill discovery/reload/change handling.
 - No comparable session-memory / team-memory integration around skills.
 **Status:** basic local skill loading only.
 ---
-## cli/
+## 5) cli/
-### TS exists
+### Upstream TS has
-Evidence:
+- Broad CLI handler and transport surface.
- Large command surface under `src/commands/` including `agents`, `hooks`, `mcp`, `memory`, `model`, `permissions`, `plan`, `plugin`, `resume`, `review`, `skills`, `tasks`, and many more.
+- Evidence:
- Structured/remote transport stack in `src/cli/structuredIO.ts`, `src/cli/remoteIO.ts`, and `src/cli/transports/*`.
+  - `src/cli/handlers/agents.ts:2-32`
- CLI handler split in `src/cli/handlers/*`.
+  - `src/cli/handlers/auth.ts`
  - `src/cli/handlers/autoMode.ts:24,35,73`
  - `src/cli/handlers/plugins.ts:2-3,101,157,668`
  - `src/cli/remoteIO.ts:25-35,118-127`
  - `src/cli/transports/SSETransport.ts`
  - `src/cli/transports/WebSocketTransport.ts`
  - `src/cli/transports/HybridTransport.ts`
  - `src/cli/transports/SerialBatchEventUploader.ts`
  - `src/cli/transports/WorkerStateUploader.ts`
-### Rust exists
+### Rust currently has
-Evidence:
+- Minimal top-level subcommands in `rust/crates/rusty-claude-cli/src/args.rs:29-39` and `rust/crates/rusty-claude-cli/src/main.rs:67-90,242-261`.
- Shared slash command registry in `rust/crates/commands/src/lib.rs`.
+- Slash command surface is 15 commands total in `rust/crates/commands/src/lib.rs:41-166,389`.
 - Rust slash commands currently cover `help`, `status`, `compact`, `model`, `permissions`, `clear`, `cost`, `resume`, `config`, `memory`, `init`, `diff`, `version`, `export`, `session`.
 - Main CLI/repl/prompt handling lives in `rust/crates/rusty-claude-cli/src/main.rs`.
 ### Missing or broken in Rust
- Missing major TS command families: `/agents`, `/hooks`, `/mcp`, `/plugin`, `/skills`, `/plan`, `/review`, `/tasks`, and many others.
+- **Missing major CLI subcommand families**: agents, plugins, mcp management, auto-mode tooling, and many other TS commands.
- No Rust equivalent to TS structured IO / remote transport layers.
+- **Missing remote/transport stack parity**: I did not find Rust equivalents to TS remote structured IO / SSE / websocket / CCR transport layers.
- No TS-style handler decomposition for auth/plugins/MCP/agents.
+- **Slash command breadth is much narrower** than TS command inventory under `src/commands/`.
- JSON prompt mode is improved on this branch, but still not clean transport parity: empirical verification shows tool-capable JSON output can emit human-readable tool-result lines before the final JSON object.
+- **Prompt-mode parity bug** was present and is now fixed for this branch’s prompt path.
 **Status:** functional local CLI core, much narrower than TS.
 ---
-## assistant/ (agentic loop, streaming, tool calling)
+## 6) assistant/
-### TS exists
+### Upstream TS has
-Evidence:
+- Rich tool orchestration and streaming execution behavior, including concurrency/cancellation/fallback logic.
- Assistant/session surface at `src/assistant/sessionHistory.ts`.
+- Evidence:
- Tool orchestration in `src/services/tools/StreamingToolExecutor.ts`, `src/services/tools/toolExecution.ts`, `src/services/tools/toolOrchestration.ts`.
+  - `src/services/tools/StreamingToolExecutor.ts:35-214`
- Remote/structured streaming layers in `src/cli/structuredIO.ts` and `src/cli/remoteIO.ts`.
+  - `src/services/tools/toolExecution.ts:455-569,800-918,1483`
  - `src/services/tools/toolOrchestration.ts:134-167`
  - `src/assistant/sessionHistory.ts`
-### Rust exists
+### Rust currently has
-Evidence:
+- A straightforward agentic loop in `rust/crates/runtime/src/conversation.rs:130-214`.
- Core loop in `rust/crates/runtime/src/conversation.rs`.
+- Streaming API adaptation in `rust/crates/rusty-claude-cli/src/main.rs:1998-2058`.
- Stream/tool event translation in `rust/crates/rusty-claude-cli/src/main.rs`.
+- Tool-use block assembly and non-stream fallback handling in `rust/crates/rusty-claude-cli/src/main.rs:2211-2256`.
 - Session persistence in `rust/crates/runtime/src/session.rs`.
 ### Missing or broken in Rust
- No TS-style hook-aware orchestration layer.
+- **No TS-style streaming tool executor** with sibling cancellation / fallback discard semantics.
- No TS structured/remote assistant transport stack.
+- **No integrated PreToolUse/PostToolUse hook participation** in assistant execution.
- No richer TS assistant/session-history/background-task integration.
+- **No comparable orchestration layer for richer tool event semantics** found.
- JSON output path is no longer single-turn only on this branch, but output cleanliness still lags TS transport expectations.
+- Historically broken parity items in prompt mode were:
-
+  - prompt tool enablement (`main.rs:75-82`) — now fixed on this branch
-**Status:** strong core loop, missing orchestration layers.
+  - streamed `{}` tool-input prefix behavior (`main.rs:2211-2256`) — now fixed/guarded on this branch
 ---
-## services/ (API client, auth, models, MCP)
+## 7) services/
-### TS exists
+### Upstream TS has
-Evidence:
+- Very broad service layer, including API, analytics, compact/session memory, prompt suggestions, plugin services, MCP service helpers, LSP management, policy limits, team memory sync, notifier/tips, etc.
- API services under `src/services/api/*`.
+- Evidence:
- OAuth services under `src/services/oauth/*`.
+  - `src/services/api/client.ts`, `src/services/api/claude.ts`, `src/services/api/withRetry.ts`
- MCP services under `src/services/mcp/*`.
+  - `src/services/oauth/client.ts`, `src/services/oauth/index.ts`
- Additional service layers for analytics, prompt suggestion, session memory, plugin operations, settings sync, policy limits, team memory sync, notifier, voice, and more under `src/services/*`.
+  - `src/services/mcp/*`
  - `src/services/plugins/*`
  - `src/services/lsp/*`
  - `src/services/compact/*`
  - `src/services/SessionMemory/*`
  - `src/services/PromptSuggestion/*`
  - `src/services/analytics/*`
  - `src/services/teamMemorySync/*`
-### Rust exists
+### Rust currently has
-Evidence:
+- Core service equivalents for:
- Core Anthropic API client in `rust/crates/api/src/{client,error,sse,types}.rs`.
+  - API client + SSE: `rust/crates/api/src/client.rs`, `rust/crates/api/src/sse.rs`, `rust/crates/api/src/types.rs`
- OAuth support in `rust/crates/runtime/src/oauth.rs`.
+  - OAuth: `rust/crates/runtime/src/oauth.rs`
- MCP config/bootstrap/client support in `rust/crates/runtime/src/{config,mcp,mcp_client,mcp_stdio}.rs`.
+  - MCP config/bootstrap primitives: `rust/crates/runtime/src/mcp.rs`, `rust/crates/runtime/src/mcp_client.rs`, `rust/crates/runtime/src/mcp_stdio.rs`, `rust/crates/runtime/src/config.rs`
- Usage accounting in `rust/crates/runtime/src/usage.rs`.
+  - prompt/context loading: `rust/crates/runtime/src/prompt.rs`
- Remote upstream-proxy support in `rust/crates/runtime/src/remote.rs`.
+  - session compaction/runtime usage: `rust/crates/runtime/src/compact.rs`, `rust/crates/runtime/src/usage.rs`
 ### Missing or broken in Rust
- Most TS service ecosystem beyond core messaging/auth/MCP is absent.
+- **Missing many higher-level services**: analytics, plugin services, prompt suggestion, team memory sync, richer LSP service management, notifier/tips ecosystem, and much of the surrounding product/service scaffolding.
- No TS-equivalent plugin service layer.
+- Rust is closer to a **runtime/API core** than a full parity implementation of the TS service layer.
 - No TS-equivalent analytics/settings-sync/policy-limit/team-memory subsystems.
 - No TS-style MCP connection-manager/UI layer.
 - Model/provider ergonomics remain thinner than TS.
 **Status:** core foundation exists; broader service ecosystem missing.
 ---
-## Critical bug status in this worktree
+## Highest-priority parity gaps after the critical bug fixes
-### Fixed
+1. **Hook execution parity**
- **Prompt mode tools enabled**
+   - Config exists, execution does not appear to.
-  - `rust/crates/rusty-claude-cli/src/main.rs` now constructs prompt mode with `LiveCli::new(model, true, ...)`.
+   - This affects permissions, tool interception, and continuation behavior.
 - **Default permission mode = DangerFullAccess**
  - Runtime default now resolves to `DangerFullAccess` in `rust/crates/rusty-claude-cli/src/main.rs`.
  - Clap default also uses `DangerFullAccess` in `rust/crates/rusty-claude-cli/src/args.rs`.
  - Init template writes `dontAsk` in `rust/crates/rusty-claude-cli/src/init.rs`.
 - **Streaming `{}` tool-input prefix bug**
  - `rust/crates/rusty-claude-cli/src/main.rs` now strips the initial empty object only for streaming tool input, while preserving legitimate `{}` in non-stream responses.
 - **Unlimited max_iterations**
  - Verified at `rust/crates/runtime/src/conversation.rs` with `usize::MAX`.
-### Remaining notable parity issue
+2. **Plugin system parity**
- **JSON prompt output cleanliness**
+   - Entire install/load/manage surface appears missing.
-  - Tool-capable JSON mode now loops, but empirical verification still shows pre-JSON human-readable tool-result output when tools fire.
+
 3. **CLI breadth parity**
   - Missing many upstream command families and remote transports.
 4. **Tool surface parity**
   - MVP tool registry exists, but a large number of upstream tool types are absent.
 5. **Assistant orchestration parity**
   - Core loop exists, but advanced streaming/execution behaviors from TS are missing.
 ## Recommended next work after current critical fixes
 1. Finish build/test/manual verification of the critical bug patch.
 2. Implement **hook execution** before broadening the tool surface further.
 3. Decide whether **plugins** are in-scope for parity; if yes, this likely needs dedicated design work, not a small patch.
 4. Expand the CLI/tool matrix deliberately rather than adding one-off commands without shared orchestration support.
--- a/rust/.claude/sessions/session-1775010333630.json
+++ b/rust/.claude/sessions/session-1775010333630.json
@@ -1 +0,0 @@
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--- a/rust/.claude/sessions/session-1775010384918.json
+++ b/rust/.claude/sessions/session-1775010384918.json
@@ -1 +0,0 @@
 {"messages":[{"blocks":[{"text":"who are you?","type":"text"}],"role":"user"},{"blocks":[{"text":"I'm **Claude**, an AI assistant built by Anthropic, currently running as a **Claude Code agent** (Claude Opus 4.6). I'm set up in your workspace at `/home/bellman/Workspace/clawd-code/rust` with the **oh-my-claudecode (OMC)** orchestration layer active.\n\nHere's what I can help you with:\n\n- **Software engineering tasks** — reading, writing, and refactoring code\n- **Debugging** — diagnosing issues, running tests, tracing errors\n- **Research & planning** — exploring codebases, understanding architecture, planning changes\n- **Shell commands** — building, testing, running tools in your environment\n- **Multi-agent workflows** — delegating specialized work (reviews, deep analysis, etc.) via OMC\n\nI have access to your local filesystem, can execute shell commands, search the web, and coordinate specialized sub-agents for complex tasks.\n\nWhat can I help you with today?","type":"text"}],"role":"assistant","usage":{"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"input_tokens":4292,"output_tokens":220}}],"version":1}
--- a/rust/.claude/sessions/session-1775010909274.json
+++ b/rust/.claude/sessions/session-1775010909274.json
@@ -1 +0,0 @@
 {"messages":[],"version":1}
--- a/rust/.claude/sessions/session-1775011146355.json
+++ b/rust/.claude/sessions/session-1775011146355.json
@@ -1 +0,0 @@
 {"messages":[],"version":1}
--- a/rust/.claude/sessions/session-1775011562247.json
+++ b/rust/.claude/sessions/session-1775011562247.json
--- a/rust/.clawd-todos.json
+++ b/rust/.clawd-todos.json
@@ -1,22 +0,0 @@
 [
  {
    "content": "Phase 0: Structural Cleanup — spawn 4 agents for 0.1-0.4",
    "activeForm": "Executing Phase 0: Structural Cleanup via sub-agents",
    "status": "in_progress"
  },
  {
    "content": "Phase 1.1-1.2: Status bar with live HUD and token counter",
    "activeForm": "Awaiting Phase 0",
    "status": "pending"
  },
  {
    "content": "Phase 2.4: Remove artificial 8ms stream delay",
    "activeForm": "Awaiting Phase 0",
    "status": "pending"
  },
  {
    "content": "Phase 3.1: Collapsible tool output",
    "activeForm": "Awaiting Phase 0",
    "status": "pending"
  }
 ]
--- a/rust/.omc/plans/tui-enhancement-plan.md
+++ b/rust/.omc/plans/tui-enhancement-plan.md
@@ -1,221 +0,0 @@
 # TUI Enhancement Plan — Claw Code (`rusty-claude-cli`)
 ## Executive Summary
 This plan covers a comprehensive analysis of the current terminal user interface and proposes phased enhancements that will transform the existing REPL/prompt CLI into a polished, modern TUI experience — while preserving the existing clean architecture and test coverage.
 ---
 ## 1. Current Architecture Analysis
 ### Crate Map
 | Crate | Purpose | Lines | TUI Relevance |
 |---|---|---|---|
 | `rusty-claude-cli` | Main binary: REPL loop, arg parsing, rendering, API bridge | ~3,600 | **Primary TUI surface** |
 | `runtime` | Session, conversation loop, config, permissions, compaction | ~5,300 | Provides data/state |
 | `api` | Anthropic HTTP client + SSE streaming | ~1,500 | Provides stream events |
 | `commands` | Slash command metadata/parsing/help | ~470 | Drives command dispatch |
 | `tools` | 18 built-in tool implementations | ~3,500 | Tool execution display |
 ### Current TUI Components
 | Component | File | What It Does Today | Quality |
 |---|---|---|---|
 | **Input** | `input.rs` (269 lines) | `rustyline`-based line editor with slash-command tab completion, Shift+Enter newline, history | ✅ Solid |
 | **Rendering** | `render.rs` (641 lines) | Markdown→terminal rendering (headings, lists, tables, code blocks with syntect highlighting, blockquotes), spinner widget | ✅ Good |
 | **App/REPL loop** | `main.rs` (3,159 lines) | The monolithic `LiveCli` struct: REPL loop, all slash command handlers, streaming output, tool call display, permission prompting, session management | ⚠️ Monolithic |
 | **Alt App** | `app.rs` (398 lines) | An earlier `CliApp` prototype with `ConversationClient`, stream event handling, `TerminalRenderer`, output format support | ⚠️ Appears unused/legacy |
 ### Key Dependencies
 - **crossterm 0.28** — terminal control (cursor, colors, clear)
 - **pulldown-cmark 0.13** — Markdown parsing
 - **syntect 5** — syntax highlighting
 - **rustyline 15** — line editing with completion
 - **serde_json** — tool I/O formatting
 ### Strengths
 1. **Clean rendering pipeline**: Markdown rendering is well-structured with state tracking, table rendering, code highlighting
 2. **Rich tool display**: Tool calls get box-drawing borders (`╭─ name ─╮`), results show ✓/✗ icons
 3. **Comprehensive slash commands**: 15 commands covering model switching, permissions, sessions, config, diff, export
 4. **Session management**: Full persistence, resume, list, switch, compaction
 5. **Permission prompting**: Interactive Y/N approval for restricted tool calls
 6. **Thorough tests**: Every formatting function, every parse path has unit tests
 ### Weaknesses & Gaps
 1. **`main.rs` is a 3,159-line monolith** — all REPL logic, formatting, API bridging, session management, and tests in one file
 2. **No alternate-screen / full-screen layout** — everything is inline scrolling output
 3. **No progress bars** — only a single braille spinner; no indication of streaming progress or token counts during generation
 4. **No visual diff rendering** — `/diff` just dumps raw git diff text
 5. **No syntax highlighting in streamed output** — markdown rendering only applies to tool results, not to the main assistant response stream
 6. **No status bar / HUD** — model, tokens, session info not visible during interaction
 7. **No image/attachment preview** — `SendUserMessage` resolves attachments but never displays them
 8. **Streaming is char-by-char with artificial delay** — `stream_markdown` sleeps 8ms per whitespace-delimited chunk
 9. **No color theme customization** — hardcoded `ColorTheme::default()`
 10. **No resize handling** — no terminal size awareness for wrapping, truncation, or layout
 11. **Dual app structs** — `app.rs` has a separate `CliApp` that duplicates `LiveCli` from `main.rs`
 12. **No pager for long outputs** — `/status`, `/config`, `/memory` can overflow the viewport
 13. **Tool results not collapsible** — large bash outputs flood the screen
 14. **No thinking/reasoning indicator** — when the model is in "thinking" mode, no visual distinction
 15. **No auto-complete for tool arguments** — only slash command names complete
 ---
 ## 2. Enhancement Plan
 ### Phase 0: Structural Cleanup (Foundation)
 **Goal**: Break the monolith, remove dead code, establish the module structure for TUI work.
 | Task | Description | Effort |
 |---|---|---|
 | 0.1 | **Extract `LiveCli` into `app.rs`** — Move the entire `LiveCli` struct, its impl, and helpers (`format_*`, `render_*`, session management) out of `main.rs` into focused modules: `app.rs` (core), `format.rs` (report formatting), `session_manager.rs` (session CRUD) | M |
 | 0.2 | **Remove or merge the legacy `CliApp`** — The existing `app.rs` has an unused `CliApp` with its own `ConversationClient`-based rendering. Either delete it or merge its unique features (stream event handler pattern) into the active `LiveCli` | S |
 | 0.3 | **Extract `main.rs` arg parsing** — The current `parse_args()` is a hand-rolled parser that duplicates the clap-based `args.rs`. Consolidate on the hand-rolled parser (it's more feature-complete) and move it to `args.rs`, or adopt clap fully | S |
 | 0.4 | **Create a `tui/` module** — Introduce `crates/rusty-claude-cli/src/tui/mod.rs` as the namespace for all new TUI components: `status_bar.rs`, `layout.rs`, `tool_panel.rs`, etc. | S |
 ### Phase 1: Status Bar & Live HUD
 **Goal**: Persistent information display during interaction.
 | Task | Description | Effort |
 |---|---|---|
 | 1.1 | **Terminal-size-aware status line** — Use `crossterm::terminal::size()` to render a bottom-pinned status bar showing: model name, permission mode, session ID, cumulative token count, estimated cost | M |
 | 1.2 | **Live token counter** — Update the status bar in real-time as `AssistantEvent::Usage` and `AssistantEvent::TextDelta` events arrive during streaming | M |
 | 1.3 | **Turn duration timer** — Show elapsed time for the current turn (the `showTurnDuration` config already exists in Config tool but isn't wired up) | S |
 | 1.4 | **Git branch indicator** — Display the current git branch in the status bar (already parsed via `parse_git_status_metadata`) | S |
 ### Phase 2: Enhanced Streaming Output
 **Goal**: Make the main response stream visually rich and responsive.
 | Task | Description | Effort |
 |---|---|---|
 | 2.1 | **Live markdown rendering** — Instead of raw text streaming, buffer text deltas and incrementally render Markdown as it arrives (heading detection, bold/italic, inline code). The existing `TerminalRenderer::render_markdown` can be adapted for incremental use | L |
 | 2.2 | **Thinking indicator** — When extended thinking/reasoning is active, show a distinct animated indicator (e.g., `🧠 Reasoning...` with pulsing dots or a different spinner) instead of the generic `🦀 Thinking...` | S |
 | 2.3 | **Streaming progress bar** — Add an optional horizontal progress indicator below the spinner showing approximate completion (based on max_tokens vs. output_tokens so far) | M |
 | 2.4 | **Remove artificial stream delay** — The current `stream_markdown` sleeps 8ms per chunk. For tool results this is fine, but for the main response stream it should be immediate or configurable | S |
 ### Phase 3: Tool Call Visualization
 **Goal**: Make tool execution legible and navigable.
 | Task | Description | Effort |
 |---|---|---|
 | 3.1 | **Collapsible tool output** — For tool results longer than N lines (configurable, default 15), show a summary with `[+] Expand` hint; pressing a key reveals the full output. Initially implement as truncation with a "full output saved to file" fallback | M |
 | 3.2 | **Syntax-highlighted tool results** — When tool results contain code (detected by tool name — `bash` stdout, `read_file` content, `REPL` output), apply syntect highlighting rather than rendering as plain text | M |
 | 3.3 | **Tool call timeline** — For multi-tool turns, show a compact summary: `🔧 bash → ✓ | read_file → ✓ | edit_file → ✓ (3 tools, 1.2s)` after all tool calls complete | S |
 | 3.4 | **Diff-aware edit_file display** — When `edit_file` succeeds, show a colored unified diff of the change instead of just `✓ edit_file: path` | M |
 | 3.5 | **Permission prompt enhancement** — Style the approval prompt with box drawing, color the tool name, show a one-line summary of what the tool will do | S |
 ### Phase 4: Enhanced Slash Commands & Navigation
 **Goal**: Improve information display and add missing features.
 | Task | Description | Effort |
 |---|---|---|
 | 4.1 | **Colored `/diff` output** — Parse the git diff and render it with red/green coloring for removals/additions, similar to `delta` or `diff-so-fancy` | M |
 | 4.2 | **Pager for long outputs** — When `/status`, `/config`, `/memory`, or `/diff` produce output longer than the terminal height, pipe through an internal pager (scroll with j/k/q) or external `$PAGER` | M |
 | 4.3 | **`/search` command** — Add a new command to search conversation history by keyword | M |
 | 4.4 | **`/undo` command** — Undo the last file edit by restoring from the `originalFile` data in `write_file`/`edit_file` tool results | M |
 | 4.5 | **Interactive session picker** — Replace the text-based `/session list` with an interactive fuzzy-filterable list (up/down arrows to select, enter to switch) | L |
 | 4.6 | **Tab completion for tool arguments** — Extend `SlashCommandHelper` to complete file paths after `/export`, model names after `/model`, session IDs after `/session switch` | M |
 ### Phase 5: Color Themes & Configuration
 **Goal**: User-customizable visual appearance.
 | Task | Description | Effort |
 |---|---|---|
 | 5.1 | **Named color themes** — Add `dark` (current default), `light`, `solarized`, `catppuccin` themes. Wire to the existing `Config` tool's `theme` setting | M |
 | 5.2 | **ANSI-256 / truecolor detection** — Detect terminal capabilities and fall back gracefully (no colors → 16 colors → 256 → truecolor) | M |
 | 5.3 | **Configurable spinner style** — Allow choosing between braille dots, bar, moon phases, etc. | S |
 | 5.4 | **Banner customization** — Make the ASCII art banner optional or configurable via settings | S |
 ### Phase 6: Full-Screen TUI Mode (Stretch)
 **Goal**: Optional alternate-screen layout for power users.
 | Task | Description | Effort |
 |---|---|---|
 | 6.1 | **Add `ratatui` dependency** — Introduce `ratatui` (terminal UI framework) as an optional dependency for the full-screen mode | S |
 | 6.2 | **Split-pane layout** — Top pane: conversation with scrollback; Bottom pane: input area; Right sidebar (optional): tool status/todo list | XL |
 | 6.3 | **Scrollable conversation view** — Navigate past messages with PgUp/PgDn, search within conversation | L |
 | 6.4 | **Keyboard shortcuts panel** — Show `?` help overlay with all keybindings | M |
 | 6.5 | **Mouse support** — Click to expand tool results, scroll conversation, select text for copy | L |
 ---
 ## 3. Priority Recommendation
 ### Immediate (High Impact, Moderate Effort)
 1. **Phase 0** — Essential cleanup. The 3,159-line `main.rs` is the #1 maintenance risk and blocks clean TUI additions.
 2. **Phase 1.1–1.2** — Status bar with live tokens. Highest-impact UX win: users constantly want to know token usage.
 3. **Phase 2.4** — Remove artificial delay. Low effort, immediately noticeable improvement.
 4. **Phase 3.1** — Collapsible tool output. Large bash outputs currently wreck readability.
 ### Near-Term (Next Sprint)
 5. **Phase 2.1** — Live markdown rendering. Makes the core interaction feel polished.
 6. **Phase 3.2** — Syntax-highlighted tool results.
 7. **Phase 3.4** — Diff-aware edit display.
 8. **Phase 4.1** — Colored diff for `/diff`.
 ### Longer-Term
 9. **Phase 5** — Color themes (user demand-driven).
 10. **Phase 4.2–4.6** — Enhanced navigation and commands.
 11. **Phase 6** — Full-screen mode (major undertaking, evaluate after earlier phases ship).
 ---
 ## 4. Architecture Recommendations
 ### Module Structure After Phase 0
 ```
 crates/rusty-claude-cli/src/
 ├── main.rs              # Entrypoint, arg dispatch only (~100 lines)
 ├── args.rs              # CLI argument parsing (consolidate existing two parsers)
 ├── app.rs               # LiveCli struct, REPL loop, turn execution
 ├── format.rs            # All report formatting (status, cost, model, permissions, etc.)
 ├── session_mgr.rs       # Session CRUD: create, resume, list, switch, persist
 ├── init.rs              # Repo initialization (unchanged)
 ├── input.rs             # Line editor (unchanged, minor extensions)
 ├── render.rs            # TerminalRenderer, Spinner (extended)
 └── tui/
    ├── mod.rs           # TUI module root
    ├── status_bar.rs    # Persistent bottom status line
    ├── tool_panel.rs    # Tool call visualization (boxes, timelines, collapsible)
    ├── diff_view.rs     # Colored diff rendering
    ├── pager.rs         # Internal pager for long outputs
    └── theme.rs         # Color theme definitions and selection
 ```
 ### Key Design Principles
 1. **Keep the inline REPL as the default** — Full-screen TUI should be opt-in (`--tui` flag)
 2. **Everything testable without a terminal** — All formatting functions take `&mut impl Write`, never assume stdout directly
 3. **Streaming-first** — Rendering should work incrementally, not buffering the entire response
 4. **Respect `crossterm` for all terminal control** — Don't mix raw ANSI escape codes with crossterm (the current codebase does this in the startup banner)
 5. **Feature-gate heavy dependencies** — `ratatui` should be behind a `full-tui` feature flag
 ---
 ## 5. Risk Assessment
 | Risk | Mitigation |
 |---|---|
 | Breaking the working REPL during refactor | Phase 0 is pure restructuring with existing test coverage as safety net |
 | Terminal compatibility issues (tmux, SSH, Windows) | Rely on crossterm's abstraction; test in degraded environments |
 | Performance regression with rich rendering | Profile before/after; keep the fast path (raw streaming) always available |
 | Scope creep into Phase 6 | Ship Phases 0–3 as a coherent release before starting Phase 6 |
 | `app.rs` vs `main.rs` confusion | Phase 0.2 explicitly resolves this by removing the legacy `CliApp` |
 ---
 *Generated: 2026-03-31 | Workspace: `rust/` | Branch: `dev/rust`*
--- a/rust/.sandbox-home/.rustup/settings.toml
+++ b/rust/.sandbox-home/.rustup/settings.toml
@@ -1,3 +0,0 @@
 version = "12"
 [overrides]
--- a/rust/TUI-ENHANCEMENT-PLAN.md
+++ b/rust/TUI-ENHANCEMENT-PLAN.md
@@ -1,221 +0,0 @@
 # TUI Enhancement Plan — Claw Code (`rusty-claude-cli`)
 ## Executive Summary
 This plan covers a comprehensive analysis of the current terminal user interface and proposes phased enhancements that will transform the existing REPL/prompt CLI into a polished, modern TUI experience — while preserving the existing clean architecture and test coverage.
 ---
 ## 1. Current Architecture Analysis
 ### Crate Map
 | Crate | Purpose | Lines | TUI Relevance |
 |---|---|---|---|
 | `rusty-claude-cli` | Main binary: REPL loop, arg parsing, rendering, API bridge | ~3,600 | **Primary TUI surface** |
 | `runtime` | Session, conversation loop, config, permissions, compaction | ~5,300 | Provides data/state |
 | `api` | Anthropic HTTP client + SSE streaming | ~1,500 | Provides stream events |
 | `commands` | Slash command metadata/parsing/help | ~470 | Drives command dispatch |
 | `tools` | 18 built-in tool implementations | ~3,500 | Tool execution display |
 ### Current TUI Components
 | Component | File | What It Does Today | Quality |
 |---|---|---|---|
 | **Input** | `input.rs` (269 lines) | `rustyline`-based line editor with slash-command tab completion, Shift+Enter newline, history | ✅ Solid |
 | **Rendering** | `render.rs` (641 lines) | Markdown→terminal rendering (headings, lists, tables, code blocks with syntect highlighting, blockquotes), spinner widget | ✅ Good |
 | **App/REPL loop** | `main.rs` (3,159 lines) | The monolithic `LiveCli` struct: REPL loop, all slash command handlers, streaming output, tool call display, permission prompting, session management | ⚠️ Monolithic |
 | **Alt App** | `app.rs` (398 lines) | An earlier `CliApp` prototype with `ConversationClient`, stream event handling, `TerminalRenderer`, output format support | ⚠️ Appears unused/legacy |
 ### Key Dependencies
 - **crossterm 0.28** — terminal control (cursor, colors, clear)
 - **pulldown-cmark 0.13** — Markdown parsing
 - **syntect 5** — syntax highlighting
 - **rustyline 15** — line editing with completion
 - **serde_json** — tool I/O formatting
 ### Strengths
 1. **Clean rendering pipeline**: Markdown rendering is well-structured with state tracking, table rendering, code highlighting
 2. **Rich tool display**: Tool calls get box-drawing borders (`╭─ name ─╮`), results show ✓/✗ icons
 3. **Comprehensive slash commands**: 15 commands covering model switching, permissions, sessions, config, diff, export
 4. **Session management**: Full persistence, resume, list, switch, compaction
 5. **Permission prompting**: Interactive Y/N approval for restricted tool calls
 6. **Thorough tests**: Every formatting function, every parse path has unit tests
 ### Weaknesses & Gaps
 1. **`main.rs` is a 3,159-line monolith** — all REPL logic, formatting, API bridging, session management, and tests in one file
 2. **No alternate-screen / full-screen layout** — everything is inline scrolling output
 3. **No progress bars** — only a single braille spinner; no indication of streaming progress or token counts during generation
 4. **No visual diff rendering** — `/diff` just dumps raw git diff text
 5. **No syntax highlighting in streamed output** — markdown rendering only applies to tool results, not to the main assistant response stream
 6. **No status bar / HUD** — model, tokens, session info not visible during interaction
 7. **No image/attachment preview** — `SendUserMessage` resolves attachments but never displays them
 8. **Streaming is char-by-char with artificial delay** — `stream_markdown` sleeps 8ms per whitespace-delimited chunk
 9. **No color theme customization** — hardcoded `ColorTheme::default()`
 10. **No resize handling** — no terminal size awareness for wrapping, truncation, or layout
 11. **Dual app structs** — `app.rs` has a separate `CliApp` that duplicates `LiveCli` from `main.rs`
 12. **No pager for long outputs** — `/status`, `/config`, `/memory` can overflow the viewport
 13. **Tool results not collapsible** — large bash outputs flood the screen
 14. **No thinking/reasoning indicator** — when the model is in "thinking" mode, no visual distinction
 15. **No auto-complete for tool arguments** — only slash command names complete
 ---
 ## 2. Enhancement Plan
 ### Phase 0: Structural Cleanup (Foundation)
 **Goal**: Break the monolith, remove dead code, establish the module structure for TUI work.
 | Task | Description | Effort |
 |---|---|---|
 | 0.1 | **Extract `LiveCli` into `app.rs`** — Move the entire `LiveCli` struct, its impl, and helpers (`format_*`, `render_*`, session management) out of `main.rs` into focused modules: `app.rs` (core), `format.rs` (report formatting), `session_manager.rs` (session CRUD) | M |
 | 0.2 | **Remove or merge the legacy `CliApp`** — The existing `app.rs` has an unused `CliApp` with its own `ConversationClient`-based rendering. Either delete it or merge its unique features (stream event handler pattern) into the active `LiveCli` | S |
 | 0.3 | **Extract `main.rs` arg parsing** — The current `parse_args()` is a hand-rolled parser that duplicates the clap-based `args.rs`. Consolidate on the hand-rolled parser (it's more feature-complete) and move it to `args.rs`, or adopt clap fully | S |
 | 0.4 | **Create a `tui/` module** — Introduce `crates/rusty-claude-cli/src/tui/mod.rs` as the namespace for all new TUI components: `status_bar.rs`, `layout.rs`, `tool_panel.rs`, etc. | S |
 ### Phase 1: Status Bar & Live HUD
 **Goal**: Persistent information display during interaction.
 | Task | Description | Effort |
 |---|---|---|
 | 1.1 | **Terminal-size-aware status line** — Use `crossterm::terminal::size()` to render a bottom-pinned status bar showing: model name, permission mode, session ID, cumulative token count, estimated cost | M |
 | 1.2 | **Live token counter** — Update the status bar in real-time as `AssistantEvent::Usage` and `AssistantEvent::TextDelta` events arrive during streaming | M |
 | 1.3 | **Turn duration timer** — Show elapsed time for the current turn (the `showTurnDuration` config already exists in Config tool but isn't wired up) | S |
 | 1.4 | **Git branch indicator** — Display the current git branch in the status bar (already parsed via `parse_git_status_metadata`) | S |
 ### Phase 2: Enhanced Streaming Output
 **Goal**: Make the main response stream visually rich and responsive.
 | Task | Description | Effort |
 |---|---|---|
 | 2.1 | **Live markdown rendering** — Instead of raw text streaming, buffer text deltas and incrementally render Markdown as it arrives (heading detection, bold/italic, inline code). The existing `TerminalRenderer::render_markdown` can be adapted for incremental use | L |
 | 2.2 | **Thinking indicator** — When extended thinking/reasoning is active, show a distinct animated indicator (e.g., `🧠 Reasoning...` with pulsing dots or a different spinner) instead of the generic `🦀 Thinking...` | S |
 | 2.3 | **Streaming progress bar** — Add an optional horizontal progress indicator below the spinner showing approximate completion (based on max_tokens vs. output_tokens so far) | M |
 | 2.4 | **Remove artificial stream delay** — The current `stream_markdown` sleeps 8ms per chunk. For tool results this is fine, but for the main response stream it should be immediate or configurable | S |
 ### Phase 3: Tool Call Visualization
 **Goal**: Make tool execution legible and navigable.
 | Task | Description | Effort |
 |---|---|---|
 | 3.1 | **Collapsible tool output** — For tool results longer than N lines (configurable, default 15), show a summary with `[+] Expand` hint; pressing a key reveals the full output. Initially implement as truncation with a "full output saved to file" fallback | M |
 | 3.2 | **Syntax-highlighted tool results** — When tool results contain code (detected by tool name — `bash` stdout, `read_file` content, `REPL` output), apply syntect highlighting rather than rendering as plain text | M |
 | 3.3 | **Tool call timeline** — For multi-tool turns, show a compact summary: `🔧 bash → ✓ | read_file → ✓ | edit_file → ✓ (3 tools, 1.2s)` after all tool calls complete | S |
 | 3.4 | **Diff-aware edit_file display** — When `edit_file` succeeds, show a colored unified diff of the change instead of just `✓ edit_file: path` | M |
 | 3.5 | **Permission prompt enhancement** — Style the approval prompt with box drawing, color the tool name, show a one-line summary of what the tool will do | S |
 ### Phase 4: Enhanced Slash Commands & Navigation
 **Goal**: Improve information display and add missing features.
 | Task | Description | Effort |
 |---|---|---|
 | 4.1 | **Colored `/diff` output** — Parse the git diff and render it with red/green coloring for removals/additions, similar to `delta` or `diff-so-fancy` | M |
 | 4.2 | **Pager for long outputs** — When `/status`, `/config`, `/memory`, or `/diff` produce output longer than the terminal height, pipe through an internal pager (scroll with j/k/q) or external `$PAGER` | M |
 | 4.3 | **`/search` command** — Add a new command to search conversation history by keyword | M |
 | 4.4 | **`/undo` command** — Undo the last file edit by restoring from the `originalFile` data in `write_file`/`edit_file` tool results | M |
 | 4.5 | **Interactive session picker** — Replace the text-based `/session list` with an interactive fuzzy-filterable list (up/down arrows to select, enter to switch) | L |
 | 4.6 | **Tab completion for tool arguments** — Extend `SlashCommandHelper` to complete file paths after `/export`, model names after `/model`, session IDs after `/session switch` | M |
 ### Phase 5: Color Themes & Configuration
 **Goal**: User-customizable visual appearance.
 | Task | Description | Effort |
 |---|---|---|
 | 5.1 | **Named color themes** — Add `dark` (current default), `light`, `solarized`, `catppuccin` themes. Wire to the existing `Config` tool's `theme` setting | M |
 | 5.2 | **ANSI-256 / truecolor detection** — Detect terminal capabilities and fall back gracefully (no colors → 16 colors → 256 → truecolor) | M |
 | 5.3 | **Configurable spinner style** — Allow choosing between braille dots, bar, moon phases, etc. | S |
 | 5.4 | **Banner customization** — Make the ASCII art banner optional or configurable via settings | S |
 ### Phase 6: Full-Screen TUI Mode (Stretch)
 **Goal**: Optional alternate-screen layout for power users.
 | Task | Description | Effort |
 |---|---|---|
 | 6.1 | **Add `ratatui` dependency** — Introduce `ratatui` (terminal UI framework) as an optional dependency for the full-screen mode | S |
 | 6.2 | **Split-pane layout** — Top pane: conversation with scrollback; Bottom pane: input area; Right sidebar (optional): tool status/todo list | XL |
 | 6.3 | **Scrollable conversation view** — Navigate past messages with PgUp/PgDn, search within conversation | L |
 | 6.4 | **Keyboard shortcuts panel** — Show `?` help overlay with all keybindings | M |
 | 6.5 | **Mouse support** — Click to expand tool results, scroll conversation, select text for copy | L |
 ---
 ## 3. Priority Recommendation
 ### Immediate (High Impact, Moderate Effort)
 1. **Phase 0** — Essential cleanup. The 3,159-line `main.rs` is the #1 maintenance risk and blocks clean TUI additions.
 2. **Phase 1.1–1.2** — Status bar with live tokens. Highest-impact UX win: users constantly want to know token usage.
 3. **Phase 2.4** — Remove artificial delay. Low effort, immediately noticeable improvement.
 4. **Phase 3.1** — Collapsible tool output. Large bash outputs currently wreck readability.
 ### Near-Term (Next Sprint)
 5. **Phase 2.1** — Live markdown rendering. Makes the core interaction feel polished.
 6. **Phase 3.2** — Syntax-highlighted tool results.
 7. **Phase 3.4** — Diff-aware edit display.
 8. **Phase 4.1** — Colored diff for `/diff`.
 ### Longer-Term
 9. **Phase 5** — Color themes (user demand-driven).
 10. **Phase 4.2–4.6** — Enhanced navigation and commands.
 11. **Phase 6** — Full-screen mode (major undertaking, evaluate after earlier phases ship).
 ---
 ## 4. Architecture Recommendations
 ### Module Structure After Phase 0
 ```
 crates/rusty-claude-cli/src/
 ├── main.rs              # Entrypoint, arg dispatch only (~100 lines)
 ├── args.rs              # CLI argument parsing (consolidate existing two parsers)
 ├── app.rs               # LiveCli struct, REPL loop, turn execution
 ├── format.rs            # All report formatting (status, cost, model, permissions, etc.)
 ├── session_mgr.rs       # Session CRUD: create, resume, list, switch, persist
 ├── init.rs              # Repo initialization (unchanged)
 ├── input.rs             # Line editor (unchanged, minor extensions)
 ├── render.rs            # TerminalRenderer, Spinner (extended)
 └── tui/
    ├── mod.rs           # TUI module root
    ├── status_bar.rs    # Persistent bottom status line
    ├── tool_panel.rs    # Tool call visualization (boxes, timelines, collapsible)
    ├── diff_view.rs     # Colored diff rendering
    ├── pager.rs         # Internal pager for long outputs
    └── theme.rs         # Color theme definitions and selection
 ```
 ### Key Design Principles
 1. **Keep the inline REPL as the default** — Full-screen TUI should be opt-in (`--tui` flag)
 2. **Everything testable without a terminal** — All formatting functions take `&mut impl Write`, never assume stdout directly
 3. **Streaming-first** — Rendering should work incrementally, not buffering the entire response
 4. **Respect `crossterm` for all terminal control** — Don't mix raw ANSI escape codes with crossterm (the current codebase does this in the startup banner)
 5. **Feature-gate heavy dependencies** — `ratatui` should be behind a `full-tui` feature flag
 ---
 ## 5. Risk Assessment
 | Risk | Mitigation |
 |---|---|
 | Breaking the working REPL during refactor | Phase 0 is pure restructuring with existing test coverage as safety net |
 | Terminal compatibility issues (tmux, SSH, Windows) | Rely on crossterm's abstraction; test in degraded environments |
 | Performance regression with rich rendering | Profile before/after; keep the fast path (raw streaming) always available |
 | Scope creep into Phase 6 | Ship Phases 0–3 as a coherent release before starting Phase 6 |
 | `app.rs` vs `main.rs` confusion | Phase 0.2 explicitly resolves this by removing the legacy `CliApp` |
 ---
 *Generated: 2026-03-31 | Workspace: `rust/` | Branch: `dev/rust`*
--- a/rust/crates/api/src/lib.rs
+++ b/rust/crates/api/src/lib.rs
@@ -4,8 +4,8 @@ mod sse;
 mod types;
 pub use client::{
-    oauth_token_is_expired, read_base_url, resolve_saved_oauth_token,
+    oauth_token_is_expired, read_base_url, resolve_saved_oauth_token, resolve_startup_auth_source,
-    resolve_startup_auth_source, AnthropicClient, AuthSource, MessageStream, OAuthTokenSet,
+    AnthropicClient, AuthSource, MessageStream, OAuthTokenSet,
 };
 pub use error::ApiError;
 pub use sse::{parse_frame, SseParser};
--- a/rust/crates/rusty-claude-cli/src/main.rs
+++ b/rust/crates/rusty-claude-cli/src/main.rs
@@ -22,7 +22,7 @@ use commands::{
 };
 use compat_harness::{extract_manifest, UpstreamPaths};
 use init::initialize_repo;
-use render::{MarkdownStreamState, Spinner, TerminalRenderer};
+use render::{Spinner, TerminalRenderer};
 use runtime::{
    clear_oauth_credentials, generate_pkce_pair, generate_state, load_system_prompt,
    parse_oauth_callback_request_target, save_oauth_credentials, ApiClient, ApiRequest,
@@ -2011,8 +2011,6 @@ impl ApiClient for AnthropicRuntimeClient {
            } else {
                &mut sink
            };
            let renderer = TerminalRenderer::new();
            let mut markdown_stream = MarkdownStreamState::default();
            let mut events = Vec::new();
            let mut pending_tool: Option<(String, String, String)> = None;
            let mut saw_stop = false;
@@ -2040,11 +2038,9 @@ impl ApiClient for AnthropicRuntimeClient {
                    ApiStreamEvent::ContentBlockDelta(delta) => match delta.delta {
                        ContentBlockDelta::TextDelta { text } => {
                            if !text.is_empty() {
-                                if let Some(rendered) = markdown_stream.push(&renderer, &text) {
+                                write!(out, "{text}")
-                                    write!(out, "{rendered}")
+                                    .and_then(|()| out.flush())
-                                        .and_then(|()| out.flush())
+                                    .map_err(|error| RuntimeError::new(error.to_string()))?;
                                        .map_err(|error| RuntimeError::new(error.to_string()))?;
                                }
                                events.push(AssistantEvent::TextDelta(text));
                            }
                        }
@@ -2055,11 +2051,6 @@ impl ApiClient for AnthropicRuntimeClient {
                        }
                    },
                    ApiStreamEvent::ContentBlockStop(_) => {
                        if let Some(rendered) = markdown_stream.flush(&renderer) {
                            write!(out, "{rendered}")
                                .and_then(|()| out.flush())
                                .map_err(|error| RuntimeError::new(error.to_string()))?;
                        }
                        if let Some((id, name, input)) = pending_tool.take() {
                            // Display tool call now that input is fully accumulated
                            writeln!(out, "\n{}", format_tool_call_start(&name, &input))
@@ -2078,11 +2069,6 @@ impl ApiClient for AnthropicRuntimeClient {
                    }
                    ApiStreamEvent::MessageStop(_) => {
                        saw_stop = true;
                        if let Some(rendered) = markdown_stream.flush(&renderer) {
                            write!(out, "{rendered}")
                                .and_then(|()| out.flush())
                                .map_err(|error| RuntimeError::new(error.to_string()))?;
                        }
                        events.push(AssistantEvent::MessageStop);
                    }
                }
@@ -2185,49 +2171,56 @@ fn format_tool_call_start(name: &str, input: &str) -> String {
        serde_json::from_str(input).unwrap_or(serde_json::Value::String(input.to_string()));
    let detail = match name {
-        "bash" | "Bash" => format_bash_call(&parsed),
+        "bash" | "Bash" => parsed
-        "read_file" | "Read" => {
+            .get("command")
-            let path = extract_tool_path(&parsed);
+            .and_then(|v| v.as_str())
-            format!("\x1b[2m📄 Reading {path}…\x1b[0m")
+            .map(|cmd| truncate_for_summary(cmd, 120))
-        }
+            .unwrap_or_default(),
        "read_file" | "Read" => parsed
            .get("file_path")
            .or_else(|| parsed.get("path"))
            .and_then(|v| v.as_str())
            .unwrap_or("?")
            .to_string(),
        "write_file" | "Write" => {
-            let path = extract_tool_path(&parsed);
+            let path = parsed
                .get("file_path")
                .or_else(|| parsed.get("path"))
                .and_then(|v| v.as_str())
                .unwrap_or("?");
            let lines = parsed
                .get("content")
-                .and_then(|value| value.as_str())
+                .and_then(|v| v.as_str())
-                .map_or(0, |content| content.lines().count());
+                .map_or(0, |c| c.lines().count());
-            format!("\x1b[1;32m✏️ Writing {path}\x1b[0m \x1b[2m({lines} lines)\x1b[0m")
+            format!("{path} ({lines} lines)")
        }
        "edit_file" | "Edit" => {
-            let path = extract_tool_path(&parsed);
+            let path = parsed
-            let old_value = parsed
+                .get("file_path")
-                .get("old_string")
+                .or_else(|| parsed.get("path"))
-                .or_else(|| parsed.get("oldString"))
+                .and_then(|v| v.as_str())
-                .and_then(|value| value.as_str())
+                .unwrap_or("?");
-                .unwrap_or_default();
+            path.to_string()
            let new_value = parsed
                .get("new_string")
                .or_else(|| parsed.get("newString"))
                .and_then(|value| value.as_str())
                .unwrap_or_default();
            format!(
                "\x1b[1;33m📝 Editing {path}\x1b[0m{}",
                format_patch_preview(old_value, new_value)
                    .map(|preview| format!("\n{preview}"))
                    .unwrap_or_default()
            )
        }
-        "glob_search" | "Glob" => format_search_start("🔎 Glob", &parsed),
+        "glob_search" | "Glob" => parsed
-        "grep_search" | "Grep" => format_search_start("🔎 Grep", &parsed),
+            .get("pattern")
            .and_then(|v| v.as_str())
            .unwrap_or("?")
            .to_string(),
        "grep_search" | "Grep" => parsed
            .get("pattern")
            .and_then(|v| v.as_str())
            .unwrap_or("?")
            .to_string(),
        "web_search" | "WebSearch" => parsed
            .get("query")
-            .and_then(|value| value.as_str())
+            .and_then(|v| v.as_str())
            .unwrap_or("?")
            .to_string(),
        _ => summarize_tool_payload(input),
    };
-    let border = "─".repeat(name.len() + 8);
+    let border = "─".repeat(name.len() + 6);
    format!(
        "\x1b[38;5;245m╭─ \x1b[1;36m{name}\x1b[0;38;5;245m ─╮\x1b[0m\n\x1b[38;5;245m│\x1b[0m {detail}\n\x1b[38;5;245m╰{border}╯\x1b[0m"
    )
@@ -2239,269 +2232,8 @@ fn format_tool_result(name: &str, output: &str, is_error: bool) -> String {
    } else {
        "\x1b[1;32m✓\x1b[0m"
    };
-    if is_error {
+    let summary = truncate_for_summary(output.trim(), 200);
-        let summary = truncate_for_summary(output.trim(), 160);
+    format!("{icon} \x1b[38;5;245m{name}:\x1b[0m {summary}")
        return if summary.is_empty() {
            format!("{icon} \x1b[38;5;245m{name}\x1b[0m")
        } else {
            format!("{icon} \x1b[38;5;245m{name}\x1b[0m\n\x1b[38;5;203m{summary}\x1b[0m")
        };
    }
    let parsed: serde_json::Value =
        serde_json::from_str(output).unwrap_or(serde_json::Value::String(output.to_string()));
    match name {
        "bash" | "Bash" => format_bash_result(icon, &parsed),
        "read_file" | "Read" => format_read_result(icon, &parsed),
        "write_file" | "Write" => format_write_result(icon, &parsed),
        "edit_file" | "Edit" => format_edit_result(icon, &parsed),
        "glob_search" | "Glob" => format_glob_result(icon, &parsed),
        "grep_search" | "Grep" => format_grep_result(icon, &parsed),
        _ => {
            let summary = truncate_for_summary(output.trim(), 200);
            format!("{icon} \x1b[38;5;245m{name}:\x1b[0m {summary}")
        }
    }
 }
 fn extract_tool_path(parsed: &serde_json::Value) -> String {
    parsed
        .get("file_path")
        .or_else(|| parsed.get("filePath"))
        .or_else(|| parsed.get("path"))
        .and_then(|value| value.as_str())
        .unwrap_or("?")
        .to_string()
 }
 fn format_search_start(label: &str, parsed: &serde_json::Value) -> String {
    let pattern = parsed
        .get("pattern")
        .and_then(|value| value.as_str())
        .unwrap_or("?");
    let scope = parsed
        .get("path")
        .and_then(|value| value.as_str())
        .unwrap_or(".");
    format!("{label} {pattern}\n\x1b[2min {scope}\x1b[0m")
 }
 fn format_patch_preview(old_value: &str, new_value: &str) -> Option<String> {
    if old_value.is_empty() && new_value.is_empty() {
        return None;
    }
    Some(format!(
        "\x1b[38;5;203m- {}\x1b[0m\n\x1b[38;5;70m+ {}\x1b[0m",
        truncate_for_summary(first_visible_line(old_value), 72),
        truncate_for_summary(first_visible_line(new_value), 72)
    ))
 }
 fn format_bash_call(parsed: &serde_json::Value) -> String {
    let command = parsed
        .get("command")
        .and_then(|value| value.as_str())
        .unwrap_or_default();
    if command.is_empty() {
        String::new()
    } else {
        format!(
            "\x1b[48;5;236;38;5;255m $ {} \x1b[0m",
            truncate_for_summary(command, 160)
        )
    }
 }
 fn first_visible_line(text: &str) -> &str {
    text.lines()
        .find(|line| !line.trim().is_empty())
        .unwrap_or(text)
 }
 fn format_bash_result(icon: &str, parsed: &serde_json::Value) -> String {
    let mut lines = vec![format!("{icon} \x1b[38;5;245mbash\x1b[0m")];
    if let Some(task_id) = parsed
        .get("backgroundTaskId")
        .and_then(|value| value.as_str())
    {
        lines[0].push_str(&format!(" 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}"));
    }
    if let Some(stdout) = parsed.get("stdout").and_then(|value| value.as_str()) {
        if !stdout.trim().is_empty() {
            lines.push(stdout.trim_end().to_string());
        }
    }
    if let Some(stderr) = parsed.get("stderr").and_then(|value| value.as_str()) {
        if !stderr.trim().is_empty() {
            lines.push(format!("\x1b[38;5;203m{}\x1b[0m", stderr.trim_end()));
        }
    }
    lines.join("\n\n")
 }
 fn format_read_result(icon: &str, parsed: &serde_json::Value) -> String {
    let file = parsed.get("file").unwrap_or(parsed);
    let path = extract_tool_path(file);
    let start_line = file
        .get("startLine")
        .and_then(|value| value.as_u64())
        .unwrap_or(1);
    let num_lines = file
        .get("numLines")
        .and_then(|value| value.as_u64())
        .unwrap_or(0);
    let total_lines = file
        .get("totalLines")
        .and_then(|value| value.as_u64())
        .unwrap_or(num_lines);
    let content = file
        .get("content")
        .and_then(|value| value.as_str())
        .unwrap_or_default();
    let end_line = start_line.saturating_add(num_lines.saturating_sub(1));
    format!(
        "{icon} \x1b[2m📄 Read {path} (lines {}-{} of {})\x1b[0m\n{}",
        start_line,
        end_line.max(start_line),
        total_lines,
        content
    )
 }
 fn format_write_result(icon: &str, parsed: &serde_json::Value) -> String {
    let path = extract_tool_path(parsed);
    let kind = parsed
        .get("type")
        .and_then(|value| value.as_str())
        .unwrap_or("write");
    let line_count = parsed
        .get("content")
        .and_then(|value| value.as_str())
        .map(|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" },
    )
 }
 fn format_structured_patch_preview(parsed: &serde_json::Value) -> Option<String> {
    let hunks = parsed.get("structuredPatch")?.as_array()?;
    let mut preview = Vec::new();
    for hunk in hunks.iter().take(2) {
        let lines = hunk.get("lines")?.as_array()?;
        for line in lines.iter().filter_map(|value| value.as_str()).take(6) {
            match line.chars().next() {
                Some('+') => preview.push(format!("\x1b[38;5;70m{line}\x1b[0m")),
                Some('-') => preview.push(format!("\x1b[38;5;203m{line}\x1b[0m")),
                _ => preview.push(line.to_string()),
            }
        }
    }
    if preview.is_empty() {
        None
    } else {
        Some(preview.join("\n"))
    }
 }
 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())
        .unwrap_or(false)
    {
        " (replace all)"
    } else {
        ""
    };
    let preview = format_structured_patch_preview(parsed).or_else(|| {
        let old_value = parsed
            .get("oldString")
            .and_then(|value| value.as_str())
            .unwrap_or_default();
        let new_value = parsed
            .get("newString")
            .and_then(|value| value.as_str())
            .unwrap_or_default();
        format_patch_preview(old_value, new_value)
    });
    match preview {
        Some(preview) => format!("{icon} \x1b[1;33m📝 Edited {path}{suffix}\x1b[0m\n{preview}"),
        None => format!("{icon} \x1b[1;33m📝 Edited {path}{suffix}\x1b[0m"),
    }
 }
 fn format_glob_result(icon: &str, parsed: &serde_json::Value) -> String {
    let num_files = parsed
        .get("numFiles")
        .and_then(|value| value.as_u64())
        .unwrap_or(0);
    let filenames = parsed
        .get("filenames")
        .and_then(|value| value.as_array())
        .map(|files| {
            files
                .iter()
                .filter_map(|value| value.as_str())
                .take(8)
                .collect::<Vec<_>>()
                .join("\n")
        })
        .unwrap_or_default();
    if filenames.is_empty() {
        format!("{icon} \x1b[38;5;245mglob_search\x1b[0m matched {num_files} files")
    } else {
        format!("{icon} \x1b[38;5;245mglob_search\x1b[0m matched {num_files} files\n{filenames}")
    }
 }
 fn format_grep_result(icon: &str, parsed: &serde_json::Value) -> String {
    let num_matches = parsed
        .get("numMatches")
        .and_then(|value| value.as_u64())
        .unwrap_or(0);
    let num_files = parsed
        .get("numFiles")
        .and_then(|value| value.as_u64())
        .unwrap_or(0);
    let content = parsed
        .get("content")
        .and_then(|value| value.as_str())
        .unwrap_or_default();
    let filenames = parsed
        .get("filenames")
        .and_then(|value| value.as_array())
        .map(|files| {
            files
                .iter()
                .filter_map(|value| value.as_str())
                .take(8)
                .collect::<Vec<_>>()
                .join("\n")
        })
        .unwrap_or_default();
    let summary = format!(
        "{icon} \x1b[38;5;245mgrep_search\x1b[0m {num_matches} matches across {num_files} files"
    );
    if !content.trim().is_empty() {
        format!("{summary}\n{}", content.trim_end())
    } else if !filenames.is_empty() {
        format!("{summary}\n{filenames}")
    } else {
        summary
    }
 }
 fn summarize_tool_payload(payload: &str) -> String {
@@ -2532,8 +2264,7 @@ fn push_output_block(
    match block {
        OutputContentBlock::Text { text } => {
            if !text.is_empty() {
-                let rendered = TerminalRenderer::new().markdown_to_ansi(&text);
+                write!(out, "{text}")
                write!(out, "{rendered}")
                    .and_then(|()| out.flush())
                    .map_err(|error| RuntimeError::new(error.to_string()))?;
                events.push(AssistantEvent::TextDelta(text));
@@ -3325,35 +3056,9 @@ mod tests {
        assert!(start.contains("read_file"));
        assert!(start.contains("src/main.rs"));
-        let done = format_tool_result(
+        let done = format_tool_result("read_file", r#"{"contents":"hello"}"#, false);
-            "read_file",
+        assert!(done.contains("read_file:"));
-            r#"{"file":{"filePath":"src/main.rs","content":"hello","numLines":1,"startLine":1,"totalLines":1}}"#,
+        assert!(done.contains("contents"));
            false,
        );
        assert!(done.contains("📄 Read src/main.rs"));
        assert!(done.contains("hello"));
    }
    #[test]
    fn push_output_block_renders_markdown_text() {
        let mut out = Vec::new();
        let mut events = Vec::new();
        let mut pending_tool = None;
        push_output_block(
            OutputContentBlock::Text {
                text: "# Heading".to_string(),
            },
            &mut out,
            &mut events,
            &mut pending_tool,
            false,
        )
        .expect("text block should render");
        let rendered = String::from_utf8(out).expect("utf8");
        assert!(rendered.contains("Heading"));
        assert!(rendered.contains('\u{1b}'));
    }
    #[test]
--- a/rust/crates/rusty-claude-cli/src/render.rs
+++ b/rust/crates/rusty-claude-cli/src/render.rs
@@ -1,5 +1,7 @@
 use std::fmt::Write as FmtWrite;
 use std::io::{self, Write};
 use std::thread;
 use std::time::Duration;
 use crossterm::cursor::{MoveToColumn, RestorePosition, SavePosition};
 use crossterm::style::{Color, Print, ResetColor, SetForegroundColor, Stylize};
@@ -20,7 +22,6 @@ pub struct ColorTheme {
    link: Color,
    quote: Color,
    table_border: Color,
    code_block_border: Color,
    spinner_active: Color,
    spinner_done: Color,
    spinner_failed: Color,
@@ -36,7 +37,6 @@ impl Default for ColorTheme {
            link: Color::Blue,
            quote: Color::DarkGrey,
            table_border: Color::DarkCyan,
            code_block_border: Color::DarkGrey,
            spinner_active: Color::Blue,
            spinner_done: Color::Green,
            spinner_failed: Color::Red,
@@ -154,64 +154,33 @@ impl TableState {
 struct RenderState {
    emphasis: usize,
    strong: usize,
    heading_level: Option<u8>,
    quote: usize,
    list_stack: Vec<ListKind>,
    link_stack: Vec<LinkState>,
    table: Option<TableState>,
 }
 #[derive(Debug, Clone, PartialEq, Eq)]
 struct LinkState {
    destination: String,
    text: String,
 }
 impl RenderState {
    fn style_text(&self, text: &str, theme: &ColorTheme) -> String {
-        let mut style = text.stylize();
+        let mut styled = text.to_string();
-
+        if self.strong > 0 {
-        if matches!(self.heading_level, Some(1 | 2)) || self.strong > 0 {
+            styled = format!("{}", styled.bold().with(theme.strong));
            style = style.bold();
        }
        if self.emphasis > 0 {
-            style = style.italic();
+            styled = format!("{}", styled.italic().with(theme.emphasis));
        }
        if let Some(level) = self.heading_level {
            style = match level {
                1 => style.with(theme.heading),
                2 => style.white(),
                3 => style.with(Color::Blue),
                _ => style.with(Color::Grey),
            };
        } else if self.strong > 0 {
            style = style.with(theme.strong);
        } else if self.emphasis > 0 {
            style = style.with(theme.emphasis);
        }
        if self.quote > 0 {
-            style = style.with(theme.quote);
+            styled = format!("{}", styled.with(theme.quote));
        }
-
+        styled
        format!("{style}")
    }
-    fn append_raw(&mut self, output: &mut String, text: &str) {
+    fn capture_target_mut<'a>(&'a mut self, output: &'a mut String) -> &'a mut String {
-        if let Some(link) = self.link_stack.last_mut() {
+        if let Some(table) = self.table.as_mut() {
-            link.text.push_str(text);
+            &mut table.current_cell
        } else if let Some(table) = self.table.as_mut() {
            table.current_cell.push_str(text);
        } else {
-            output.push_str(text);
+            output
        }
    }
    fn append_styled(&mut self, output: &mut String, text: &str, theme: &ColorTheme) {
        let styled = self.style_text(text, theme);
        self.append_raw(output, &styled);
    }
 }
 #[derive(Debug)]
@@ -269,11 +238,6 @@ impl TerminalRenderer {
        output.trim_end().to_string()
    }
    #[must_use]
    pub fn markdown_to_ansi(&self, markdown: &str) -> String {
        self.render_markdown(markdown)
    }
    #[allow(clippy::too_many_lines)]
    fn render_event(
        &self,
@@ -285,21 +249,15 @@ impl TerminalRenderer {
        in_code_block: &mut bool,
    ) {
        match event {
-            Event::Start(Tag::Heading { level, .. }) => {
+            Event::Start(Tag::Heading { level, .. }) => self.start_heading(level as u8, output),
-                self.start_heading(state, level as u8, output)
+            Event::End(TagEnd::Heading(..) | TagEnd::Paragraph) => output.push_str("\n\n"),
            }
            Event::End(TagEnd::Paragraph) => output.push_str("\n\n"),
            Event::Start(Tag::BlockQuote(..)) => self.start_quote(state, output),
            Event::End(TagEnd::BlockQuote(..)) => {
                state.quote = state.quote.saturating_sub(1);
                output.push('\n');
            }
            Event::End(TagEnd::Heading(..)) => {
                state.heading_level = None;
                output.push_str("\n\n");
            }
            Event::End(TagEnd::Item) | Event::SoftBreak | Event::HardBreak => {
-                state.append_raw(output, "\n");
+                state.capture_target_mut(output).push('\n');
            }
            Event::Start(Tag::List(first_item)) => {
                let kind = match first_item {
@@ -335,52 +293,41 @@ impl TerminalRenderer {
            Event::Code(code) => {
                let rendered =
                    format!("{}", format!("`{code}`").with(self.color_theme.inline_code));
-                state.append_raw(output, &rendered);
+                state.capture_target_mut(output).push_str(&rendered);
            }
            Event::Rule => output.push_str("---\n"),
            Event::Text(text) => {
                self.push_text(text.as_ref(), state, output, code_buffer, *in_code_block);
            }
            Event::Html(html) | Event::InlineHtml(html) => {
-                state.append_raw(output, &html);
+                state.capture_target_mut(output).push_str(&html);
            }
            Event::FootnoteReference(reference) => {
-                state.append_raw(output, &format!("[{reference}]"));
+                let _ = write!(state.capture_target_mut(output), "[{reference}]");
            }
            Event::TaskListMarker(done) => {
-                state.append_raw(output, if done { "[x] " } else { "[ ] " });
+                state
                    .capture_target_mut(output)
                    .push_str(if done { "[x] " } else { "[ ] " });
            }
            Event::InlineMath(math) | Event::DisplayMath(math) => {
-                state.append_raw(output, &math);
+                state.capture_target_mut(output).push_str(&math);
            }
            Event::Start(Tag::Link { dest_url, .. }) => {
-                state.link_stack.push(LinkState {
+                let rendered = format!(
-                    destination: dest_url.to_string(),
+                    "{}",
-                    text: String::new(),
+                    format!("[{dest_url}]")
-                });
+                        .underlined()
-            }
+                        .with(self.color_theme.link)
-            Event::End(TagEnd::Link) => {
+                );
-                if let Some(link) = state.link_stack.pop() {
+                state.capture_target_mut(output).push_str(&rendered);
                    let label = if link.text.is_empty() {
                        link.destination.clone()
                    } else {
                        link.text
                    };
                    let rendered = format!(
                        "{}",
                        format!("[{label}]({})", link.destination)
                            .underlined()
                            .with(self.color_theme.link)
                    );
                    state.append_raw(output, &rendered);
                }
            }
            Event::Start(Tag::Image { dest_url, .. }) => {
                let rendered = format!(
                    "{}",
                    format!("[image:{dest_url}]").with(self.color_theme.link)
                );
-                state.append_raw(output, &rendered);
+                state.capture_target_mut(output).push_str(&rendered);
            }
            Event::Start(Tag::Table(..)) => state.table = Some(TableState::default()),
            Event::End(TagEnd::Table) => {
@@ -422,15 +369,19 @@ impl TerminalRenderer {
                }
            }
            Event::Start(Tag::Paragraph | Tag::MetadataBlock(..) | _)
-            | Event::End(TagEnd::Image | TagEnd::MetadataBlock(..) | _) => {}
+            | Event::End(TagEnd::Link | TagEnd::Image | TagEnd::MetadataBlock(..) | _) => {}
        }
    }
-    fn start_heading(&self, state: &mut RenderState, level: u8, output: &mut String) {
+    fn start_heading(&self, level: u8, output: &mut String) {
-        state.heading_level = Some(level);
+        output.push('\n');
-        if !output.is_empty() {
+        let prefix = match level {
-            output.push('\n');
+            1 => "# ",
-        }
+            2 => "## ",
            3 => "### ",
            _ => "#### ",
        };
        let _ = write!(output, "{}", prefix.bold().with(self.color_theme.heading));
    }
    fn start_quote(&self, state: &mut RenderState, output: &mut String) {
@@ -454,27 +405,20 @@ impl TerminalRenderer {
    }
    fn start_code_block(&self, code_language: &str, output: &mut String) {
-        let label = if code_language.is_empty() {
+        if !code_language.is_empty() {
-            "code".to_string()
+            let _ = writeln!(
-        } else {
+                output,
-            code_language.to_string()
+                "{}",
-        };
+                format!("╭─ {code_language}").with(self.color_theme.heading)
-        let _ = writeln!(
+            );
-            output,
+        }
            "{}",
            format!("╭─ {label}")
                .bold()
                .with(self.color_theme.code_block_border)
        );
    }
    fn finish_code_block(&self, code_buffer: &str, code_language: &str, output: &mut String) {
        output.push_str(&self.highlight_code(code_buffer, code_language));
-        let _ = write!(
+        if !code_language.is_empty() {
-            output,
+            let _ = write!(output, "{}", "╰─".with(self.color_theme.heading));
-            "{}",
+        }
            "╰─".bold().with(self.color_theme.code_block_border)
        );
        output.push_str("\n\n");
    }
@@ -489,7 +433,8 @@ impl TerminalRenderer {
        if in_code_block {
            code_buffer.push_str(text);
        } else {
-            state.append_styled(output, text, &self.color_theme);
+            let rendered = state.style_text(text, &self.color_theme);
            state.capture_target_mut(output).push_str(&rendered);
        }
    }
@@ -576,10 +521,9 @@ impl TerminalRenderer {
        for line in LinesWithEndings::from(code) {
            match syntax_highlighter.highlight_line(line, &self.syntax_set) {
                Ok(ranges) => {
-                    let escaped = as_24_bit_terminal_escaped(&ranges[..], false);
+                    colored_output.push_str(&as_24_bit_terminal_escaped(&ranges[..], false));
                    colored_output.push_str(&apply_code_block_background(&escaped));
                }
-                Err(_) => colored_output.push_str(&apply_code_block_background(line)),
+                Err(_) => colored_output.push_str(line),
            }
        }
@@ -587,83 +531,16 @@ impl TerminalRenderer {
    }
    pub fn stream_markdown(&self, markdown: &str, out: &mut impl Write) -> io::Result<()> {
-        let rendered_markdown = self.markdown_to_ansi(markdown);
+        let rendered_markdown = self.render_markdown(markdown);
-        write!(out, "{rendered_markdown}")?;
+        for chunk in rendered_markdown.split_inclusive(char::is_whitespace) {
-        if !rendered_markdown.ends_with('\n') {
+            write!(out, "{chunk}")?;
-            writeln!(out)?;
+            out.flush()?;
            thread::sleep(Duration::from_millis(8));
        }
-        out.flush()
+        writeln!(out)
    }
 }
 #[derive(Debug, Default, Clone, PartialEq, Eq)]
 pub struct MarkdownStreamState {
    pending: String,
 }
 impl MarkdownStreamState {
    #[must_use]
    pub fn push(&mut self, renderer: &TerminalRenderer, delta: &str) -> Option<String> {
        self.pending.push_str(delta);
        let split = find_stream_safe_boundary(&self.pending)?;
        let ready = self.pending[..split].to_string();
        self.pending.drain(..split);
        Some(renderer.markdown_to_ansi(&ready))
    }
    #[must_use]
    pub fn flush(&mut self, renderer: &TerminalRenderer) -> Option<String> {
        if self.pending.trim().is_empty() {
            self.pending.clear();
            None
        } else {
            let pending = std::mem::take(&mut self.pending);
            Some(renderer.markdown_to_ansi(&pending))
        }
    }
 }
 fn apply_code_block_background(line: &str) -> String {
    let trimmed = line.trim_end_matches('\n');
    let trailing_newline = if trimmed.len() == line.len() {
        ""
    } else {
        "\n"
    };
    let with_background = trimmed.replace("\u{1b}[0m", "\u{1b}[0;48;5;236m");
    format!("\u{1b}[48;5;236m{with_background}\u{1b}[0m{trailing_newline}")
 }
 fn find_stream_safe_boundary(markdown: &str) -> Option<usize> {
    let mut in_fence = false;
    let mut last_boundary = None;
    for (offset, line) in markdown.split_inclusive('\n').scan(0usize, |cursor, line| {
        let start = *cursor;
        *cursor += line.len();
        Some((start, line))
    }) {
        let trimmed = line.trim_start();
        if trimmed.starts_with("```") || trimmed.starts_with("~~~") {
            in_fence = !in_fence;
            if !in_fence {
                last_boundary = Some(offset + line.len());
            }
            continue;
        }
        if in_fence {
            continue;
        }
        if trimmed.is_empty() {
            last_boundary = Some(offset + line.len());
        }
    }
    last_boundary
 }
 fn visible_width(input: &str) -> usize {
    strip_ansi(input).chars().count()
 }
@@ -692,7 +569,7 @@ fn strip_ansi(input: &str) -> String {
 #[cfg(test)]
 mod tests {
-    use super::{strip_ansi, MarkdownStreamState, Spinner, TerminalRenderer};
+    use super::{strip_ansi, Spinner, TerminalRenderer};
    #[test]
    fn renders_markdown_with_styling_and_lists() {
@@ -706,28 +583,16 @@ mod tests {
        assert!(markdown_output.contains('\u{1b}'));
    }
    #[test]
    fn renders_links_as_colored_markdown_labels() {
        let terminal_renderer = TerminalRenderer::new();
        let markdown_output =
            terminal_renderer.render_markdown("See [Claw](https://example.com/docs) now.");
        let plain_text = strip_ansi(&markdown_output);
        assert!(plain_text.contains("[Claw](https://example.com/docs)"));
        assert!(markdown_output.contains('\u{1b}'));
    }
    #[test]
    fn highlights_fenced_code_blocks() {
        let terminal_renderer = TerminalRenderer::new();
        let markdown_output =
-            terminal_renderer.markdown_to_ansi("```rust\nfn hi() { println!(\"hi\"); }\n```");
+            terminal_renderer.render_markdown("```rust\nfn hi() { println!(\"hi\"); }\n```");
        let plain_text = strip_ansi(&markdown_output);
        assert!(plain_text.contains("╭─ rust"));
        assert!(plain_text.contains("fn hi"));
        assert!(markdown_output.contains('\u{1b}'));
        assert!(markdown_output.contains("[48;5;236m"));
    }
    #[test]
@@ -758,26 +623,6 @@ mod tests {
        assert!(markdown_output.contains('\u{1b}'));
    }
    #[test]
    fn streaming_state_waits_for_complete_blocks() {
        let renderer = TerminalRenderer::new();
        let mut state = MarkdownStreamState::default();
        assert_eq!(state.push(&renderer, "# Heading"), None);
        let flushed = state
            .push(&renderer, "\n\nParagraph\n\n")
            .expect("completed block");
        let plain_text = strip_ansi(&flushed);
        assert!(plain_text.contains("Heading"));
        assert!(plain_text.contains("Paragraph"));
        assert_eq!(state.push(&renderer, "```rust\nfn main() {}\n"), None);
        let code = state
            .push(&renderer, "```\n")
            .expect("closed code fence flushes");
        assert!(strip_ansi(&code).contains("fn main()"));
    }
    #[test]
    fn spinner_advances_frames() {
        let terminal_renderer = TerminalRenderer::new();
--- a/rust/crates/tools/src/lib.rs
+++ b/rust/crates/tools/src/lib.rs
@@ -1259,7 +1259,15 @@ fn validate_todos(todos: &[TodoItem]) -> Result<(), String> {
    if todos.is_empty() {
        return Err(String::from("todos must not be empty"));
    }
-    // Allow multiple in_progress items for parallel workflows
+    let in_progress = todos
        .iter()
        .filter(|todo| matches!(todo.status, TodoStatus::InProgress))
        .count();
    if in_progress > 1 {
        return Err(String::from(
            "exactly zero or one todo items may be in_progress",
        ));
    }
    if todos.iter().any(|todo| todo.content.trim().is_empty()) {
        return Err(String::from("todo content must not be empty"));
    }
@@ -2207,7 +2215,7 @@ fn execute_shell_command(
            persisted_output_path: None,
            persisted_output_size: None,
            sandbox_status: None,
-});
+        });
    }
    let mut process = std::process::Command::new(shell);
@@ -2276,7 +2284,7 @@ Command exceeded timeout of {timeout_ms} ms",
                    persisted_output_path: None,
                    persisted_output_size: None,
                    sandbox_status: None,
-});
+                });
            }
            std::thread::sleep(Duration::from_millis(10));
        }
@@ -2646,8 +2654,7 @@ mod tests {
            .expect_err("empty todos should fail");
        assert!(empty.contains("todos must not be empty"));
-        // Multiple in_progress items are now allowed for parallel workflows
+        let too_many_active = execute_tool(
        let _multi_active = execute_tool(
            "TodoWrite",
            &json!({
                "todos": [
@@ -2656,7 +2663,8 @@ mod tests {
                ]
            }),
        )
-        .expect("multiple in-progress todos should succeed");
+        .expect_err("multiple in-progress todos should fail");
        assert!(too_many_active.contains("zero or one todo items may be in_progress"));
        let blank_content = execute_tool(
            "TodoWrite",
		`@@ -1 +0,0 @@`
			{"messages":[{"blocks":[{"text":"hello use bash tool for testing","type":"text"}],"role":"user"},{"blocks":[{"text":"\n\nHello! I'm ready to help. Let me run a quick bash command to confirm everything is working:","type":"text"},{"id":"toolu_01EuTzVfUK7iPRBvjZAovzfV","input":"{\"command\": \"echo \\\"Hello! Bash tool is working. 🎉\\\" && date && pwd\"}","name":"bash","type":"tool_use"}],"role":"assistant","usage":{"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"input_tokens":4277,"output_tokens":92}},{"blocks":[{"is_error":false,"output":"{\n \"stdout\": \"Hello! Bash tool is working. 🎉\\nWed Apr 1 02:25:46 AM UTC 2026\\n/home/bellman/Workspace/clawd-code/rust\\n\",\n \"stderr\": \"\",\n \"rawOutputPath\": null,\n \"interrupted\": false,\n \"isImage\": null,\n \"backgroundTaskId\": null,\n \"backgroundedByUser\": null,\n \"assistantAutoBackgrounded\": null,\n \"dangerouslyDisableSandbox\": null,\n \"returnCodeInterpretation\": null,\n \"noOutputExpected\": false,\n \"structuredContent\": null,\n \"persistedOutputPath\": null,\n \"persistedOutputSize\": null,\n \"sandboxStatus\": {\n \"enabled\": true,\n \"requested\": {\n \"enabled\": true,\n \"namespace_restrictions\": true,\n \"network_isolation\": false,\n \"filesystem_mode\": \"workspace-only\",\n \"allowed_mounts\": []\n },\n \"supported\": true,\n \"active\": true,\n \"namespace_supported\": true,\n \"namespace_active\": true,\n \"network_supported\": true,\n \"network_active\": false,\n \"filesystem_mode\": \"workspace-only\",\n \"filesystem_active\": true,\n \"allowed_mounts\": [],\n \"in_container\": false,\n \"container_markers\": [],\n \"fallback_reason\": null\n }\n}","tool_name":"bash","tool_use_id":"toolu_01EuTzVfUK7iPRBvjZAovzfV","type":"tool_result"}],"role":"tool"},{"blocks":[{"text":"Bash tool is working perfectly! ✅\n\nHere's a quick summary:\n- Status: Operational 🎉\n- Date: Wed Apr 1, 2026\n- Working directory: `/home/bellman/Workspace/clawd-code/rust`\n- Sandbox: Enabled and active\n\nHow can I help you today?","type":"text"}],"role":"assistant","usage":{"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"input_tokens":4746,"output_tokens":84}}],"version":1}
		`@@ -1 +0,0 @@`
			{"messages":[{"blocks":[{"text":"who are you?","type":"text"}],"role":"user"},{"blocks":[{"text":"I'm Claude, an AI assistant built by Anthropic, currently running as a Claude Code agent (Claude Opus 4.6). I'm set up in your workspace at `/home/bellman/Workspace/clawd-code/rust` with the oh-my-claudecode (OMC) orchestration layer active.\n\nHere's what I can help you with:\n\n- Software engineering tasks — reading, writing, and refactoring code\n- Debugging — diagnosing issues, running tests, tracing errors\n- Research & planning — exploring codebases, understanding architecture, planning changes\n- Shell commands — building, testing, running tools in your environment\n- Multi-agent workflows — delegating specialized work (reviews, deep analysis, etc.) via OMC\n\nI have access to your local filesystem, can execute shell commands, search the web, and coordinate specialized sub-agents for complex tasks.\n\nWhat can I help you with today?","type":"text"}],"role":"assistant","usage":{"cache_creation_input_tokens":0,"cache_read_input_tokens":0,"input_tokens":4292,"output_tokens":220}}],"version":1}