Add a [harnessx] config block so the agentic plane can be steered from
openultrasast.toml, and make the LLM provider selectable (the hunter and verifier
previously hardcoded AnthropicProvider).
- config.HarnessxConfig: provider ("anthropic"|"openai"|"litellm", default
anthropic), max_cost_usd (2.0), token_threshold (120000); parsed from [harnessx].
- harness_ext.build_provider: single lazy, capability-guarded provider factory.
The provider name is validated before any import, so an unknown choice fails with
a clear ValueError even when the extra is absent; each provider reads its own
standard key env var (openai -> OPENAI_API_KEY, anthropic -> ANTHROPIC_API_KEY).
- HxScanOrchestrator and verify_findings_dispatch take a provider and route through
build_provider; cli threads config.harnessx.{provider,max_cost_usd,token_threshold}
into both the hunter and the verifier.
- README: "Configuring the HarnessX agentic plane" section (install, models,
provider, budgets, fallback/degradation).
Test isolation: convert the "harnessx not in sys.modules" import-guards to a
hermetic subprocess fixture (tests/conftest.py assert_cold_of_harnessx) and
simulate extra-absent in the CLI dispatch tests, so the suite is deterministic
whether or not the optional extra is installed (it now is, locally). Verified the
OpenAI path constructs end-to-end (build_provider -> OpenAIProvider; orchestrator
-> Harness) with the budget threaded through.
137 passed, 3 skipped; ruff + mypy clean; detection gate PASS.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Wire HarnessX as an optional, SHA-pinned extra with a lazy capability guard,
keeping the core install zero-dependency.
- pyproject: add [project.optional-dependencies] harnessx pinned to commit
274c512 (Darwin-Agent/HarnessX). Core dependencies stays []. uv_build emits
`Requires-Dist: harnessx @ git+...@<sha> ; extra == 'harnessx'` +
`Provides-Extra: harnessx` (verified via uv build); release ships to GitHub
Releases, not PyPI, so the direct-reference is fine.
- harness_ext.py: the capability seam. has_harnessx() probes via find_spec
(never imports harnessx); require_harnessx() imports lazily on demand and
raises HarnessXUnavailableError with install guidance when absent. Every
Phase 3+ HarnessX path routes through here so heavy imports stay cold by default.
- uv.lock refreshed: the universal lock now resolves the harnessx tree (149 pkgs)
but `uv sync --group dev` installs only 57 — harnessx is NOT importable in the
default/CI venv (verified), so CI stays lean and never re-locks.
- Tests: core deps empty; the extra is a 40-hex SHA-pinned git URL; importing
openultrasast.cli does not import harnessx; has_harnessx probes without
importing; require_harnessx raises with guidance when absent.
98 tests pass; ruff + mypy clean; detection gate 93.6%/0% intact. Spec task 5
(5.1 + 5.2) checked off; next is task 6 (build_sast hunter sub-harness).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
