feat: GASP bridge — tested GASP-conformant runtime (C2b)

[yuanhao]

What

Phase C2(b): yoagent records agent runs into a GASP agent repo — and backs the claim with the protocol's own conformance checker running in CI. This completes the C2 pair: session trees (C2a) are the transcripts/ tier; this is the semantic event log.

let recorder = GaspRecorder::init("./my-agent-repo", "my-agent", "worker-1",
    GoalRef::New { title: "ship the feature".into() }).await?;

let (tx, record_handle) = recorder.recording_sender("implement the parser", None);
agent.prompt_with_sender("implement the parser", tx).await;
let run_id = record_handle.await??;   // events appended + committed

Design

• Zero loop changes — the recorder is a consumer of the AgentEvent stream (the _with_sender API existing for exactly this), teeing events to your UI.
• Placement: gasp feature in yoagent depending on yoagent-state 0.4 (the GASP reference runtime, which already ships the YoAgentStateSink/git-store machinery). The reverse direction would force yoagent-state to depend on the whole agent runtime for one enum.
• Mapping: run.started → model.called/finished per turn → tool.called/finished per execution → run.finished + one git commit per run (append-only history is what conformance check 4 walks). Summaries only — transcripts belong in the cold tier (Session::to_jsonl).
• Crash-safe: stale open runs closed as interrupted on open; a dropped stream finishes the run as interrupted before committing.

The proof

New CI job gasp-conformance: emits a repo with a MockProvider agent (deterministic, no network, no keys) and runs the gasp checker against it. Verified locally:

[PASS] check 1 — envelope round-trip     [PASS] check 5 — causation integrity
[PASS] check 2 — replay                  [PASS] check 6 — restore
[PASS] check 3 — vocabulary              [PASS] check 7 — domain↔ops consistency
[PASS] check 4 — append-only in git
conformant: all checks passed

That makes the roadmap's flagship claim literal: yoagent is the first tested GASP-conformant runtime — the yologdev narrative assembled (yoagent the runtime, GASP the protocol, yoyo the proof).

Tests (4 new, 381 total green)

Full-run event skeleton asserted in order + commit assertion · tee to forward sender · goal reuse across recorder reopen · dropped-sender interrupted closure.

Verification

clippy -Dwarnings --all-features clean · 381 passed / 0 failed · docs -Dwarnings clean · conformance checker passes locally against the emitted repo.

🤖 Generated with Claude Code