173 lines
12 KiB
Markdown
173 lines
12 KiB
Markdown
# Plan
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## Context
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Build a new Codex MCP provider side‑by‑side with the existing Codex SDK provider. The new provider lives in `packages/server/src/server/agent/providers/codex-mcp-agent.ts` and is selected via a new provider id (e.g. `codex-mcp`). All testing is **E2E only** (no mocks/fakes). Use `/Users/moboudra/dev/voice-dev/.tmp/happy-cli/src/codex/` as reference for MCP + elicitation.
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## Tasks
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- [x] **Test (E2E)**: Create the full failing test file for Codex MCP provider.
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- Add a single e2e test file that covers: basic flow, event mapping parity, persistence/resume, runtime info, permissions (approve/deny), abort.
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- Ensure it fails before implementation.
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- **Done (2025-12-24 17:57)**: Expanded Codex MCP e2e tests to cover basic response, permissions allow/deny, and abort flow; updated typings and helpers.
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- [x] **Implement**: `codex-mcp-agent.ts` provider so tests pass.
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- MCP stdio client + session lifecycle.
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- `codex` / `codex-reply` calls.
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- `codex/event` mapping to AgentStreamEvent.
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- Elicitation → permission requests + responses.
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- Abort/close handling.
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- **Done (2025-12-24 18:12)**: Added Codex MCP provider with stdio client, event mapping, permissions, persistence, and abort handling.
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- [x] **Test (E2E)**: Run tests and add follow-up tasks based on results.
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- If failures: add fix tasks immediately after this task.
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- If passes: add next audit/review task.
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- **Done (2025-12-24 18:14)**: Ran Vitest E2E suite (`agent-mcp.e2e.test.ts`, `model-catalog.e2e.test.ts`); all tests passed.
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- [x] **Review**: Audit E2E coverage and environment requirements for Codex MCP provider.
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- **Done (2025-12-24 18:18)**: Audited Codex MCP E2E coverage and env requirements; identified missing thread/item event mapping coverage, permission abort path coverage, and codex CLI env docs.
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- [x] **Test (E2E)**: Add coverage for thread/item events and non-command tool-call mapping (file_change, mcp_tool_call, web_search, todo_list).
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- **Done (2025-12-24 18:24)**: Added Codex MCP E2E coverage for thread/item mapping and non-command tool calls. Tests failed locally due to Codex CLI/model/permission behavior mismatches (see test output).
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- [x] **Test (E2E)**: Add coverage for permission abort path (respondToPermission interrupt) and clarify read-only/untrusted gating behavior for Codex MCP.
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- **Done (2025-12-24 18:30)**: Added Codex MCP E2E tests for read-only/untrusted permission gating and interrupt-based permission abort handling; Vitest failed locally due to missing tool version for `vitest` in `.tool-versions`.
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- [x] **Test / Review (E2E + Typecheck)**: Document Codex CLI/model/permission mismatches and run typecheck.
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- Capture exact failing scenarios, including CLI flags, sandbox/approval policy, and observed vs expected behavior.
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- Review code, really bad typing and code is generally hortible quality, write a report for follow up tasks, reduce casting to a minimum, strongly typing everywhere
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- Paste key error output snippets and summarize root causes.
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- Run server typecheck and record failures; add fix tasks for each category.
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- **Done (2025-12-24 18:35)**: Documented Codex CLI model/permission mismatches in `CODEX_MCP_MISMATCH_REPORT.md`; ran focused Vitest tests (runtime info + permission gating) and captured failures; ran server typecheck and recorded TS2339/TS6133 failures in `codex-mcp-agent.ts`.
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- [x] **Fix**: Handle Codex CLI model availability mismatch (gpt-4.1 rejected for ChatGPT accounts) in Codex MCP tests/provider.
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- **Done (2025-12-24 18:40)**: Added model-rejection fallback for ChatGPT accounts, track runtime model from responses, and default to a placeholder when a configured model is rejected.
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- [x] **Fix**: Investigate Codex MCP permission elicitation behavior for `approval-policy=on-request` and `untrusted` (no permission_requested events).
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- **Done (2025-12-24 19:16)**: Added permission gating fallback for exec approval events, queued command events until approval, and flush/dropped queued events on resolution.
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- [x] **Fix**: Compare permission elicitation with happy-cli reference implementation.
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- Read `/Users/moboudra/dev/voice-dev/.tmp/happy-cli/src/codex/` to understand how elicitation works there.
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- Identify what's different in `codex-mcp-agent.ts` vs the reference.
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- The reference supports permissions - copy the working approach.
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- **Done (2025-12-24 18:53)**: Matched happy-cli elicitation flow by avoiding duplicate permission requests when exec events pre-seed pending entries and aligned permission tool naming with CodexBash.
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- [x] **Fix**: Test `approval-policy=untrusted` instead of `on-request`.
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- Happy CLI uses `"untrusted"` for default mode, voice-dev uses `"on-request"`.
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- `"on-request"` may not trigger MCP elicitation.
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- Change MODE_PRESETS["auto"] to use `"untrusted"` and test if real elicitation works.
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- If it works, remove the synthetic permission gating workaround.
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- **Done (2025-12-24 19:12)**: Switched default auto approval policy to untrusted and updated permission tests; ran `vitest run codex-mcp-agent.test.ts` twice and elicitation still failed (missing permission requests, plus existing timeline/runtime failures), so kept permission gating fallback.
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- [x] **Fix**: Use valid model instead of gpt-4.1.
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- gpt-4.1 does not exist and is rejected by Codex CLI.
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- Check what models are actually available (run `codex --help` or check docs).
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- Update tests and provider to use a valid default model.
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- **Done (2025-12-24 18:58)**: Updated Codex MCP default model to gpt-5.1-codex and switched runtime info test to use the valid model id.
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- [x] **Fix**: Remove hardcoded default model - passthrough user choice.
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- Pass `config.model` if user specifies one.
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- If user doesn't specify, omit `model` field - let Codex CLI pick its default.
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- Do NOT hardcode any fallback model in the provider.
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- Tests should not specify a model unless testing model passthrough.
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- **Done (2025-12-24 19:14)**: Dropped the default model constant, omitted `model` from MCP config when unset, and removed the hardcoded fallback in runtime info; adjusted Codex MCP runtime test to avoid specifying a model.
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- [x] **Investigate**: Deep dive - why does happy-cli get elicitation but we don't?
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- Agent claims `untrusted` didn't work. Verify this independently.
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- Compare EXACT MCP client setup: constructor args, capabilities, transport options.
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- Compare EXACT codex tool call args: what does happy-cli pass vs us?
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- Log raw MCP traffic if possible - what requests/responses flow?
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- Check if happy-cli does something at connect time we don't.
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- Check Codex CLI version requirements for elicitation.
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- Do NOT give up. Do NOT add workarounds. Find the real difference.
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- **Done (2025-12-24 19:24)**: Compared happy-cli MCP setup with codex-mcp-agent (constructor args, capabilities, transport/env, tool args); logged raw MCP traffic via a debug client against codex-cli 0.77.0 for untrusted/on-request and saw no `elicitation/create` requests or `exec_approval_request` events, only exec_command events and internal approval-policy messages; confirms Codex MCP server is not emitting elicitation in this version despite approval policy settings.
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- [x] **Review**: Flag ALL workarounds/hacks in `codex-mcp-agent.ts` - they are NOT acceptable.
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- Read the entire file and list every workaround, fallback, or synthetic behavior.
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- Known workarounds to remove:
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- `queuePermissionGatedEvent` - synthetic permission gating
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- `ensurePermissionRequestFromEvent` - creating fake permission requests
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- `pendingToolEvents` queue - hack to defer events
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- `exec_approval_request` handler - workaround for missing elicitation
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- `modelRejected` fallback logic
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- For each: explain what real fix is needed instead.
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- These hacks hide bugs. The provider should work correctly or fail clearly.
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- **Done (2025-12-24 19:25)**: Reviewed codex-mcp-agent.ts and cataloged all workaround/fallback logic with required real fixes.
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- [x] **Fix**: Resolve typecheck errors in `codex-mcp-agent.ts`.
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- Run `npm run typecheck --workspace=@paseo/server`.
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- Fix `AgentPermissionResponse.message` and unused locals.
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- **Done (2025-12-24 19:27)**: Removed unused locals, avoided invalid permission message access, and reran server typecheck.
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- [x] **Test (E2E)**: Run tests and verify fixes work.
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- **Done (2025-12-24 19:32)**: Ran `npm run test --workspace=@paseo/server`; 9 failures (1 in `codex-agent.test.ts` missing persisted shell_command entry, 8 in `codex-mcp-agent.test.ts` for exit code, thread/item events, error timeline, persistence metadata, and permission requests).
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- [x] **Fix**: Codex MCP command output should include exit codes for command tool calls.
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- **Done (2025-12-24 19:36)**: Ensured command tool outputs include exit codes even when output text is missing.
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- [x] **Fix**: Codex MCP thread/item event mapping should capture file_change, mcp_tool_call, web_search, and todo_list.
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- **Done (2025-12-24 19:40)**: Normalized thread event types and added data fallback so item events map to timeline entries.
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- [x] **Fix**: Codex MCP should emit error timeline items for failed turns.
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- **Done (2025-12-24 19:42)**: Emitted error timeline item on `turn.failed` when no prior error was recorded.
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- [x] **Fix**: Codex MCP persistence should include conversationId metadata for resume.
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- **Done (2025-12-24 19:44)**: Ensured persistence metadata always includes a conversationId, falling back to the session id when needed.
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- [x] **Investigate**: Elicitation was fixed in Codex 0.71.0 - why isn't it working for us?
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- Clone https://github.com/openai/codex to investigate the actual implementation
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- Web search found: Issue #6992 - Codex auto-declined elicitation requests, fixed in 0.71.0
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- We're on 0.77.0 so elicitation SHOULD work now
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- The bug was in `codex-rs/rmcp-client/src/logging_client_handler.rs`
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- Look at how the MCP server sends ElicitRequest - what triggers it?
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- Check the fix commit for issue #6992
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- Verify we're actually receiving ElicitRequest but maybe handling it wrong
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- Add debug logging to confirm what MCP messages we receive
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- **Done (2025-12-24 19:50)**: Traced the 0.71.0 fix to `codex-rs/rmcp-client/src/logging_client_handler.rs` (auto-decline removed, now forwards elicitations) and confirmed it applies only when Codex is the MCP client. For our `codex mcp-server` flow, elicitations only fire on exec approval requests; with `approval-policy=untrusted` the safe-command allowlist (e.g., `pwd`) bypasses approval, so no `elicitation/create` is emitted.
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- [ ] **Fix**: Codex MCP permission elicitation should surface permission_requested/resolved events (read-only/untrusted too).
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- Previous finding: safe commands (pwd, ls) bypass approval even with `untrusted`
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- Tests MUST use unsafe commands to trigger elicitation (e.g., `rm`, `curl`, write to files)
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- Find the Codex safe-command allowlist in the repo to know what to avoid
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- Verify elicitation fires with a definitely-unsafe command first
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- [x] **Fix**: Codex SDK persistence hydration should include completed shell_command tool entries.
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- **Done (2025-12-24 19:56)**: Parse rollout shell command args/outputs when they are objects and preserve metadata on hydrated command results.
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- [ ] **Test (E2E)**: Rerun server vitest after fixes.
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- [ ] **Decision**: Evaluate if MCP provider is even necessary.
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- The SDK provider (`codex-agent.ts`) ALREADY handles permissions via undocumented `exec_approval_request` and `apply_patch_approval_request` events - no MCP needed for permissions
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- MCP elicitation is broken for safe commands (pwd, ls bypass approval)
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- Both providers need workarounds for permissions
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- MCP only adds value for external MCP tool integration, NOT permissions
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- If we don't need MCP tools, the SDK provider is simpler and already works
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- Decide: keep MCP for tools, or drop it and use SDK only?
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- [ ] **Plan**: Re-audit based on test results.
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