headless-agent
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This directory owns the replay and real-model test composition for a headless coding agent: DeepSeek V4 + local bash and filesystem tools + subagent delegation + workflows and fresh-agent Ralph iteration + todo_write + JSONL persistence. It explicitly mounts the shared agent spine, one root agent, persistence, and checkpoint policy; it is not a second product front door.
Run it
# repo root .env (gitignored) or exported env:
# DEEPSEEK_API_KEY=sk-…
# DEEPSEEK_BASE_URL=https://… # optional; defaults to the public API
pnpm run dsh run "fix the failing test in this workspace"
The product command is dsh run: it accepts one nonblank task, creates and persists a fresh session, prints the final assistant text, and exits. The root demo:headless script is only an alias of that command.
Snapshot suites run this directory's configuration through tests/fixtures/headless-driver.ts, an unexported test-only process that emits canonical session events as JSONL before its result record. That stream is test infrastructure, not a supported CLI output format. Child sessions surface only through parent tool events and results.
Advanced configuration
advanced.cordis.yml adds Code Mode and the Cordis tools to the test composition.