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## Description `headroom wrap copilot -- --model gpt-5.4` fails with `400 The requested model is not available for integrator "copilot-language-server"`, even though the same GitHub account uses GPT-5.4 fine in the native `copilot` CLI. On the hosted Copilot OAuth path (authenticated via `headroom copilot-auth`, no `--subscription`), `headroom/cli/wrap.py` forced the `completions` wire API for every non-`--subscription` launch and ignored a caller-supplied `COPILOT_PROVIDER_WIRE_API`. GPT-5.x / o-series reasoning models need the `responses` wire API. The OAuth path now honors a valid inherited `COPILOT_PROVIDER_WIRE_API` (`completions` or `responses`) and otherwise uses the model-aware default via `_copilot_default_wire_api_for_model(selected_model)`, so GPT-5.x routes to `responses` while GPT-4.1 stays on `completions`. The `--subscription` path is unchanged. This supersedes the earlier closed #2243, which mixed the fix with unrelated proxy/CI changes and hit merge conflicts. This PR ships only the `headroom/cli/wrap.py` wire-api selection plus regression tests, rebased clean on `main`. Closes #2222 ## Type of Change - [x] Bug fix (non-breaking change that fixes an issue) - [ ] New feature (non-breaking change that adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to change) - [ ] Documentation update - [ ] Performance improvement - [ ] Code refactoring (no functional changes) ## Changes Made - Hosted Copilot OAuth launch resolves the wire API from an explicit `COPILOT_PROVIDER_WIRE_API` env value when it is `completions`/`responses`, else from `_copilot_default_wire_api_for_model(selected_model)` instead of a hardcoded `completions`. The `subscription`-only gating on the model-aware default is removed so OAuth and subscription paths pick the same model-correct wire API. ## Testing - [x] Unit tests pass (`pytest`) - [ ] Linting passes (`ruff check .`) - [ ] Type checking passes (`mypy headroom`) - [x] New tests added for new functionality - [ ] Manual testing performed ### Test Output ```text $ .venv/bin/python -m pytest tests/test_cli/test_wrap_copilot.py tests/test_provider_copilot_wrap.py -q 70 passed in 0.28s ``` New tests cover: the OAuth path honoring an inherited `COPILOT_PROVIDER_WIRE_API`, the OAuth path resolving GPT-5.4 to `responses`, and `default_wire_api_for_model("gpt-5.4")` returning `responses`. ## Real Behavior Proof - Environment: local checkout, Python 3.14, target tests only. - Exact command / steps: `.venv/bin/python -m pytest tests/test_cli/test_wrap_copilot.py tests/test_provider_copilot_wrap.py -q` - Observed result: 70 passed; the OAuth-path tests assert `env["COPILOT_PROVIDER_WIRE_API"] == "responses"` for GPT-5.x and honor an inherited override. - Not tested: the end-to-end live Copilot `400` reproduction, which needs a real Copilot OAuth session plus a GPT-5.x request. The wire-api selection that caused the `400` is covered by the unit tests above. ## Review Readiness - [x] I have performed a self-review - [x] This PR is ready for human review ## Checklist - [x] My code follows the project's style guidelines - [x] I have performed a self-review of my code - [ ] I have commented my code, particularly in hard-to-understand areas - [ ] I have made corresponding changes to the documentation - [x] My changes generate no new warnings - [x] I have added tests that prove my fix is effective or that my feature works - [x] New and existing unit tests pass locally with my changes - [x] I did **not** edit `CHANGELOG.md` — it is generated by release-please from my Conventional Commit PR title (a CI guard enforces this) ## Screenshots (if applicable) N/A — CLI behavior change covered by the unit tests above. ## Additional Notes The change is scoped to the wire-api selection line; the `--subscription` path and the existing explicit `--wire-api` CLI flag are untouched. AI was used for assistance. --------- Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com> |
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|---|---|---|
| .. | ||
| conftest.py | ||
| test_copilot_auth.py | ||
| test_init_cli.py | ||
| test_init_enable_tool_search.py | ||
| test_install_cli.py | ||
| test_main_help_version.py | ||
| test_mcp.py | ||
| test_mcp_status.py | ||
| test_recover_codex.py | ||
| test_serena_disable.py | ||
| test_serena_migrate.py | ||
| test_subprocess_utf8_encoding.py | ||
| test_unwrap_claude.py | ||
| test_wrap_aider.py | ||
| test_wrap_bridge.py | ||
| test_wrap_claude_base_url.py | ||
| test_wrap_claude_finally_unbound.py | ||
| test_wrap_claude_vertex_proxy_env.py | ||
| test_wrap_codex.py | ||
| test_wrap_copilot.py | ||
| test_wrap_dead_marker_selfheal.py | ||
| test_wrap_encoding.py | ||
| test_wrap_goose.py | ||
| test_wrap_grok.py | ||
| test_wrap_helpers.py | ||
| test_wrap_kimi.py | ||
| test_wrap_omp.py | ||
| test_wrap_openclaude.py | ||
| test_wrap_openclaw.py | ||
| test_wrap_opencode.py | ||
| test_wrap_openhands.py | ||
| test_wrap_persistent.py | ||
| test_wrap_proxy_detach.py | ||
| test_wrap_serena_boost.py | ||
| test_wrap_stale_marker.py | ||
| test_wrap_vibe.py | ||
| test_wrap_vscode.py | ||
| test_wrap_vscode_claude.py | ||
| test_wrap_zcode.py | ||