docs(roadmap): file OpenAI-compat model-id passthrough gap as #32

Author: Jobdori

ROADMAP.md

@@ -482,3 +482,5 @@ Model name prefix now wins unconditionally over env-var presence. Regression tes
 30. **DashScope model routing in ProviderClient dispatch uses wrong config** — **done at `adcea6b` on 2026-04-08**. `ProviderClient::from_model_with_anthropic_auth` dispatched all `ProviderKind::OpenAi` matches to `OpenAiCompatConfig::openai()` (reads `OPENAI_API_KEY`, points at `api.openai.com`). But DashScope models (`qwen-plus`, `qwen/qwen-max`) return `ProviderKind::OpenAi` because DashScope speaks the OpenAI wire format — they need `OpenAiCompatConfig::dashscope()` (reads `DASHSCOPE_API_KEY`, points at `dashscope.aliyuncs.com/compatible-mode/v1`). Fix: consult `metadata_for_model` in the `OpenAi` dispatch arm and pick `dashscope()` vs `openai()` based on `metadata.auth_env`. Adds regression test + `pub base_url()` accessor. 2 files, +94/−3. Authored by droid (Kimi K2.5 Turbo) via acpx, cleaned up by Jobdori.
 
 31. **`code-on-disk → verified commit lands` depends on undocumented executor quirks** — dogfooded 2026-04-08 during live fix session. Three hidden contracts tripped the "last mile" path when using droid via acpx in the claw-code workspace: **(a) hidden CWD contract** — droid's `terminal/create` rejects `cd /path && cargo build` compound commands with `spawn ENOENT`; callers must pass `--cwd` or split commands; **(b) hidden commit-message transport limit** — embedding a multi-line commit message in a single shell invocation hits `ENAMETOOLONG`; workaround is `git commit -F <file>` but the caller must know to write the file first; **(c) hidden workspace lint/edition contract** — `unsafe_code = "forbid"` workspace-wide with Rust 2021 edition makes `unsafe {}` wrappers incorrect for `set_var`/`remove_var`, but droid generates Rust 2024-style unsafe blocks without inspecting the workspace Cargo.toml or clippy config. Each of these required the orchestrator to learn the constraint by failing, then switching strategies. **Acceptance bar:** a fresh agent should be able to verify/commit/push a correct diff in this workspace without needing to know executor-specific shell trivia ahead of time. **Fix shape:** (1) `run-acpx.sh`-style wrapper that normalizes the commit idiom (always writes to temp file, sets `--cwd`, splits compound commands); (2) inject workspace constraints into the droid/acpx task preamble (edition, lint gates, known shell executor quirks) so the model doesn't have to discover them from failures; (3) or upstream a fix to the executor itself so `cd /path && cmd` chains work correctly.
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+32. **OpenAI-compatible provider/model-id passthrough is not fully literal** — dogfooded 2026-04-08 via live user in #claw-code who confirmed the exact backend model id works outside claw but fails through claw for an OpenAI-compatible endpoint. The gap: `openai/` prefix is correctly used for **transport selection** (pick the OpenAI-compat client) but the **wire model id** — the string placed in `"model": "..."` in the JSON request body — may not be the literal backend model string the user supplied. Two candidate failure modes: **(a)** `resolve_model_alias()` is called on the model string before it reaches the wire — alias expansion designed for Anthropic/known models corrupts a user-supplied backend-specific id; **(b)** the `openai/` routing prefix may not be stripped before `build_chat_completion_request` packages the body, so backends receive `openai/gpt-4` instead of `gpt-4`. **Fix shape:** cleanly separate transport selection from wire model id. Transport selection uses the prefix; wire model id is the user-supplied string minus only the routing prefix — no alias expansion, no prefix leakage. **Trace path for next session:** (1) find where `resolve_model_alias()` is called relative to the OpenAI-compat dispatch path; (2) inspect what `build_chat_completion_request` puts in `"model"` for an `openai/some-backend-id` input. **Source:** live user in #claw-code 2026-04-08, confirmed exact model id works outside claw, fails through claw for OpenAI-compat backend.