[PR-F] Test suite, CI rollback, and the draft-quality golden set (TRO-322, TRO-338)

[troysatchell]

TRO-330 [PR-F] EPIC — Test suite, CI rollback, and the draft-quality golden set

Closes TRO-322. Closes TRO-338. Closes TRO-330.

---

TRO-322 — [FG-12] Every agent behaviour needs a regression test and CI must roll back a bad deploy

What was broken: 4 of 6 named agent behaviours already had real regression coverage from earlier tickets (mentions/blocking-approval, on-demand expansion, standup drafts, blocker fan-out) — verified, not duplicated. Neither required E2E flow existed (CI ran zero playwright test invocations on either platform). FLEETGRAPH.MD's own prior investigation had already identified the rollback gap: CI-gates-merge is real prevention, but Render's health-check-gated promotion is liveness-only — a deploy that boots but is missing a secret or can't reach Ship still gets promoted, uncaught.

What changed:

• agent/src/deployReadiness.ts + check-readiness-and-rollback.ts — sustained-vs-transient readiness decision logic and a CLI that can poll a real /ready URL and (with --execute/RENDER_API_KEY) redeploy the last known-good commit via Render's API. Not wired to auto-fire in production — that's a scheduling decision flagged as a recommendation, not applied.
• e2e/fixtures/agentEnv.ts + e2e/agent-detection-latency.spec.ts + e2e/agent-chat-grounded-response.spec.ts — the two required E2E flows, using a scratch-database fixture (not testcontainers, since GitLab's shared runner can't do nested Docker) with only the model call faked.
• Both wired into new e2e-agent jobs in .github/workflows/ci.yml and .gitlab-ci.yml. scripts/factory/gate.sh now runs agent tests too.

Rollback, demonstrated not read from config:

1. Prevention layer: a throwaway branch with a deliberate type error, pushed as GitHub PR chore(ci-proof): DO NOT MERGE — TRO-322 rollback proof (deliberately broken) #131 and GitLab MR !1, both closed after proving the point. GitHub: real CI failure, mergeStateStatus: BLOCKED. GitLab: found a real, previously-undocumented gap — the shared runner is access_level: ref_protected and had never run a single merge-request-triggered pipeline in the project's history (only push/main); the MR still couldn't merge (ci_still_running), so prevention holds in effect, but not for the documented reason. Filed in FLEETGRAPH.MD as a follow-up, not fixed (instance-level GitLab setting).
2. Liveness-vs-readiness layer: two real local agent/src/index.ts processes (one Ship-unreachable, one healthy) — both pass /health, only the broken one fails /ready; the new CLI correctly distinguishes them (dry run, exit 2 vs 0).

TRO-338 — [FG-20] Recorded model responses pin the output, so a prompt rewrite can break production while every test stays green

What was broken: nothing existed — no golden set, no scoring, no draft-survival plumbing. DraftStore retained the immutable original draft text (TRO-319) but markPosted discarded what was actually posted, making the survival comparison structurally impossible.

What changed:

• agent/src/textSimilarity.ts (deterministic Jaccard scorer) + agent/src/goldenSet.ts (3 real activity-state fixtures, hand-written reference drafts — fixture 1 reuses graph.test.ts's own verified Test Case 1 seed rows) + agent/src/scripts/golden-set-compare.ts (on-demand real-model comparison, deliberately kept out of the CI gate).
• draftStore.ts's markPosted now requires finalText; gate.ts's acceptDraft computes and (via an optional, non-fatal tracker) records a draft-survival metric, mirroring costTracking.ts's proven ledger pattern.
• The acceptance test is the proof itself, not a description of one: goldenSet.test.ts uses a context-sensitive fake model against the real buildStandupPrompt. Full context vs. context-stripped-to-empty — every fixture's score drops >0.15 when stripped, in the SAME pnpm --filter @ship/agent test run where the rest of the (unmodified) suite stays green. That is literally the ticket's own divergence claim, demonstrated in one run rather than asserted.

Real, disclosed gap — filed as TRO-348, not hidden: acceptDraft has no HTTP caller anywhere in this codebase (FG-8 was never wired to a route). The survival-tracking mechanism is real and gate-tested, but nothing calls it in production yet, so nothing is being recorded live today. Neither ticket's scope included building that route — confirmed via grep, not assumed.

Evidence

Check	Result	Ran under
Regression tests	56 test case(s) added across 10 files (TRO-322 + TRO-338 combined)	pnpm --filter @ship/agent test
tests:not-weakened	1 line removed, verified: a markPosted('missing') call updated to its new required-arg signature, not a weakened assertion	manual diff review
Gate	pass, independently re-run by orchestrator twice (once per sub-issue)	scripts/factory/gate.sh
CI rollback proof	GitHub PR #131 blocked + closed; GitLab MR !1 (new runner-config finding) + closed	live, both platforms
Golden-set divergence	every fixture score drop >0.15 on context-stripped input, in the same run the rest of the suite stays green	goldenSet.test.ts

Observed: everything under "What changed" and "Rollback, demonstrated" above was actually run and its output read, not inferred. Derived: the E2E flows and CI wiring pass locally and the YAML validates, but this PR's own CI run is the first real observation of them running on either platform. Not verified: draft-survival recording a real production event (blocked on TRO-348, no HTTP route exists to call it from yet).

Bundle

Bundle: TRO-330 — [PR-F] EPIC: Test suite, CI rollback, and the draft-quality golden set
Bundle definition of done:

• Every named agent behaviour has a regression test — pass (4 pre-existing verified, 2 out of scope: TRO-335/TRO-336 not yet landed in this branch)
• Both required E2E flows pass in CI on both platforms — pass locally, pending this PR's own CI run for live confirmation
• A deliberately broken build demonstrates rollback firing — pass, real evidence both layers
• Draft-survival metric recorded in production — partial: mechanism real and tested; live wiring gap filed as TRO-348, not closed by this bundle
• CHANGES.md appended — pass, both entries plus a bundle-status section

Dropped from this bundle: none.

Rollback

Revert the merge commit. No schema/migration changes. draftStore.ts's markPosted signature change has exactly one caller in this codebase (gate.ts's acceptDraft), reverted in the same commit — no other call site to fix up. ci.yml/.gitlab-ci.yml changes are additive new jobs (e2e-agent), safe to revert independently if needed.

Summary by CodeRabbit

• New Features
  • Added golden-set scoring to assess generated draft quality.
  • Added draft-survival tracking to compare suggested and posted text.
  • Added readiness checks and a safe rollback command for sustained deployment failures.
• Bug Fixes
  • Posted drafts now retain the exact text that was submitted.
• Tests
  • Added end-to-end coverage for grounded chat responses, source citations, and agent detection latency.
  • Expanded regression coverage for draft handling, readiness recovery, and scoring behavior.
• Documentation
  • Documented rollback procedures, validation results, and quality metrics.

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📒 Files selected for processing (2)

• CHANGES.md
• audit/factory/scorecard.jsonl

Walkthrough

The change adds draft-quality scoring, draft-survival tracking, readiness polling with rollback tooling, FleetGraph agent E2E tests, and GitHub/GitLab CI integration.

Changes

FleetGraph validation

Layer / File(s)	Summary
Readiness evaluation and corrective rollback agent/src/deployReadiness.ts, agent/src/scripts/check-readiness-and-rollback.ts, agent/src/__tests__/deployReadiness.test.ts, agent/src/__tests__/check-readiness-and-rollback.test.ts, agent/package.json, FLEETGRAPH.MD	Readiness polling distinguishes transient from sustained failures. The CLI supports dry-run checks and Render rollback execution.
Draft quality and survival measurement agent/src/textSimilarity.ts, agent/src/goldenSet.ts, agent/src/draftSurvival.ts, agent/src/draftStore.ts, agent/src/gate.ts, agent/src/scripts/golden-set-compare.ts, agent/src/__tests__/*	Posted text is stored and measured against original drafts. Golden fixtures, similarity scoring, persistence, aggregation, and acceptance tests are added.
Agent E2E environment and scenarios e2e/fixtures/agentEnv.ts, e2e/fixtures/isolated-env.ts, agent/src/scripts/e2e-server.ts, e2e/agent-*.spec.ts	Playwright provisions isolated data and real processes, then tests grounded chat responses and mention detection latency.
CI and regression-gate integration .github/workflows/ci.yml, .gitlab-ci.yml, scripts/factory/gate.sh, CHANGES.md, FLEETGRAPH.MD, audit/factory/scorecard.jsonl	Both CI platforms run the agent E2E tests. The factory gate runs agent regressions and records validation results. Documentation describes execution and rollback evidence.

Estimated code review effort: 5 (Critical) | ~120 minutes

Possibly related PRs

• troysatchell/ship#1: Extends the same factory gate behavior with agent regression tests.
• troysatchell/ship#24: Shares the isolated E2E fixture and seeded test-data setup.
• troysatchell/ship#120: Provides the FleetGraph chat and inbox functionality covered by the new E2E tests.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 60.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main test, CI rollback, and golden-set changes in the pull request.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches 💡 2

📝 Generate docstrings 💡

• Create stacked PR
• Commit on current branch

⚔️ Resolve merge conflicts 💡

• Resolve merge conflict in branch feat/pr-f-test-suite-ci-rollback

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/pr-f-test-suite-ci-rollback

---

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[coderabbitai]

Actionable comments posted: 22

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.gitlab-ci.yml:
- Around line 117-134: Update the Postgres wait loop in the CI script to track
whether the connection succeeds, and exit non-zero after all 30 attempts if it
never does. Preserve the existing cleanup, retry logging, and subsequent
build/test commands only for the successful connection path.

In `@agent/src/__tests__/golden-set-compare.test.ts`:
- Around line 13-20: Add tests in the golden-set threshold suite for
parseThreshold accepting inclusive boundary values 0 and 1, and rejecting
--threshold when it is the final argument with no value. Keep the assertions
aligned with the existing range-error behavior.

In `@agent/src/__tests__/goldenSet.test.ts`:
- Around line 145-151: Update the test around GOLDEN_FIXTURES to assert that
each fixture has real activity by checking that its moved, commented, or stale
collections are not all empty, while preserving the existing referenceDraft and
id assertions.

In `@agent/src/deployReadiness.ts`:
- Around line 131-133: Update the pollReadiness configuration validation to
require attempts to be finite integers at least 1, and intervalMs to be finite
integers at least 0. Ensure these checks reject fractional, NaN, infinite, and
negative values before polling begins, covering direct callers that bypass CLI
validation.
- Around line 136-150: Update the readiness sampling loop around fetcher.get in
the deploy-readiness function to enforce a per-request timeout using
cancellation, ensuring stalled requests reject or abort and execution proceeds
to the next sample. Record timed-out requests as failed samples with a clear
timeout reason, while preserving existing handling for HTTP failures and other
errors. Add coverage for a fetcher that never resolves.

In `@agent/src/draftStore.ts`:
- Around line 229-239: Update markPosted in DraftStore to refuse calls when the
existing draft status is already 'posted', returning false before modifying the
record or finalText. Preserve the existing missing-draft false path and
first-post update behavior, and verify gate.ts acceptDraft handles the false
result correctly for an already-posted draft versus a missing draft.

In `@agent/src/scripts/check-readiness-and-rollback.ts`:
- Around line 117-121: Add a bounded timeout using AbortSignal.timeout to the
fetchImpl call in rollbackViaRenderApi that lists deployments, and apply the
same signal to the POST rollback request in the same function. Preserve the
existing request behavior and use one consistent timeout configuration for both
Render API calls.
- Around line 125-134: Strengthen the RenderDeploy type predicate in the deploys
filtering flow to validate that each object has the required string fields used
by the code, especially createdAt and status, before narrowing it to
RenderDeploy. Ensure malformed entries are excluded so both the sort in the
current selection and the comparator in findPreviousLiveDeploy cannot call
localeCompare on missing values.
- Around line 126-129: Update the deploy-list retrieval around the entries
mapping and deploy selection to follow Render’s pagination cursor across
successive responses until the previous live deploy is found or no cursor
remains. Preserve the existing envelope and commitId handling, aggregate entries
from each page, and keep the current “nothing to roll back” behavior when the
target is absent.
- Around line 203-204: Replace the direct isMainModule comparisons in
agent/src/scripts/check-readiness-and-rollback.ts:203-204 and
agent/src/scripts/golden-set-compare.ts:106-107, and apply the same change in
cost-report.ts:104, with a shared Node 20-compatible helper. The helper must
guard missing process.argv[1], resolve the entry script through realpath,
convert it with pathToFileURL, and compare it against import.meta.url so
canonical paths work across encoding, platform, and symlink cases; use the
helper to gate each script’s main() invocation.

In `@agent/src/scripts/e2e-server.ts`:
- Around line 100-107: Update the server startup and shutdown flow around
app.listen and the existing poller to handle listen errors explicitly, logging
the actual error and exiting with failure for startup failures such as
EADDRINUSE. Register SIGTERM and SIGINT handlers that stop the poller, close the
HTTP server, and allow in-flight requests to finish before exiting; use the
poller’s exposed stop() method or its actual equivalent.
- Around line 71-72: Update isConfigComplete to return a type predicate for a
CompleteAgentConfig type containing the required credential fields, allowing
TypeScript to narrow the configuration after validation. Remove the type
assertions from config.shipApiToken in the e2e server and index initialization
paths, passing the narrowed property directly.

In `@agent/src/scripts/golden-set-compare.ts`:
- Around line 70-99: Configure the ChatAnthropic instance with maxRetries: 3,
then update the model invocation flow in main so failures from model.invoke are
caught and reported with process exit code 3. Preserve exit code 1 for
below-threshold scores and ensure other unexpected errors continue through the
existing main().catch handling.

In `@CHANGES.md`:
- Around line 121-122: Update both CHANGES.md sites at lines 121-122 and
296-297: add a blank line after each “How to run it.” heading and change each
opening code fence to specify the bash language.

In `@e2e/agent-chat-grounded-response.spec.ts`:
- Around line 50-53: Replace the CSS id locator for the question input in
e2e/agent-chat-grounded-response.spec.ts#L50-L53 with its accessible getByLabel
or getByRole locator, preserving the existing enabled assertion. In
e2e/fixtures/agentEnv.ts#L440-L446, update loginAsDevUser to locate the email
and password fields with getByLabel('Email') and getByLabel('Password').
- Around line 67-68: Remove the initial visibility assertion for the “Thinking…”
status in the chat test, and retain the assertion that it is not visible so the
test verifies only the terminal state without racing the deterministic response.

In `@e2e/agent-detection-latency.spec.ts`:
- Around line 87-111: The hand-rolled polling in the agent inbox check should
use Playwright’s expect.poll instead. Replace the deadlineAt/lastBody loop and
surfacedAtMs optional bookkeeping with an expect.poll callback that fetches and
validates the inbox, records surfacedAtMs inside the callback when the matching
mention is found, and returns the found status. Configure DEADLINE_MS, a 500ms
interval, and the specified failure message, then compute observedMs from the
resulting non-optional timestamp.
- Around line 113-119: Remove the non-null assertion from the observedMs
calculation in the agent-detection latency test. After the surfacedAtMs expect,
add an explicit runtime check that confirms surfacedAtMs is defined, then
calculate observedMs only within the narrowed path while preserving the existing
failure behavior and timing calculation.
- Around line 74-77: Centralize the timing values used by the latency test:
export the fixture’s 3000 ms poll interval as a numeric constant and use
String(...) when assigning PROACTIVE_POLL_INTERVAL_MS; move CHANGE_FEED_LAG_MS
into a dependency-neutral shared module and reuse it here. Remove the local
timing definitions and any route import that triggers API or database
initialization, while preserving DEADLINE_MS calculations.

In `@e2e/fixtures/agentEnv.ts`:
- Around line 336-352: Attach error and exit listeners to every spawned child
process, including the api spawn and the corresponding web and agent spawns,
using a shared early-exit tracking pattern. Record spawn errors and exit
code/signal, then make the server-startup flow fail immediately with that
recorded detail instead of allowing waitForServer to poll until its timeout;
preserve normal readiness behavior for processes that remain running.
- Around line 82-102: Update waitForServer so each fetch attempt is bounded by
the remaining timeout, ensuring a stalled request cannot prevent the function
from reaching its timeout error. Apply the per-request timeout around fetch,
record timeout failures in lastError, and preserve the existing
successful-status checks, retry delay, and final diagnostic error.
- Around line 409-427: Move process termination and scratch-database cleanup
into a finally block surrounding the fixture setup and use() flow. Assign the
API, agent, and web child processes to the existing outer variables rather than
redeclaring them locally, then conditionally terminate any process that was
started and call dropScratchDatabase with the created scratch database so
cleanup runs when setup, token minting, server waits, or use() throws.

🪄 Autofix

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: ad63312b-844f-404b-8acd-bf147b4a3253

📥 Commits

Reviewing files that changed from the base of the PR and between cae37f9 and 206bad4.

📒 Files selected for processing (28)

• .github/workflows/ci.yml
• .gitlab-ci.yml
• CHANGES.md
• FLEETGRAPH.MD
• agent/package.json
• agent/src/__tests__/check-readiness-and-rollback.test.ts
• agent/src/__tests__/deployReadiness.test.ts
• agent/src/__tests__/draftStore.test.ts
• agent/src/__tests__/draftSurvival.test.ts
• agent/src/__tests__/gate.test.ts
• agent/src/__tests__/golden-set-compare.test.ts
• agent/src/__tests__/goldenSet.test.ts
• agent/src/__tests__/textSimilarity.test.ts
• agent/src/deployReadiness.ts
• agent/src/draftStore.ts
• agent/src/draftSurvival.ts
• agent/src/gate.ts
• agent/src/goldenSet.ts
• agent/src/scripts/check-readiness-and-rollback.ts
• agent/src/scripts/e2e-server.ts
• agent/src/scripts/golden-set-compare.ts
• agent/src/textSimilarity.ts
• audit/factory/scorecard.jsonl
• e2e/agent-chat-grounded-response.spec.ts
• e2e/agent-detection-latency.spec.ts
• e2e/fixtures/agentEnv.ts
• e2e/fixtures/isolated-env.ts
• scripts/factory/gate.sh

[coderabbitai]

📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Fail the job when Postgres never becomes reachable.

The wait loop runs at most 30 iterations and then continues regardless of the outcome. When Postgres never accepts connections, the job proceeds to the build and the Playwright run, and then fails inside e2e/fixtures/agentEnv.ts with a connection error that points at the fixture rather than at the service.

Exit non-zero after the loop when the port never opened.

🛠️ Proposed fix

     - |
+      pg_ready=0
       for i in $(seq 1 30); do
         if (exec 3<>/dev/tcp/postgres/5432) 2>/dev/null; then
           exec 3<&- 3>&-
+          pg_ready=1
           break
         fi
         echo "waiting for postgres ($i/30)..."
         sleep 2
       done
+      if [ "$pg_ready" -ne 1 ]; then
+        echo "postgres never accepted connections on postgres:5432 after 60s" >&2
+        exit 1
+      fi

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	script:
	- |
	for i in $(seq 1 30); do
	if (exec 3<>/dev/tcp/postgres/5432) 2>/dev/null; then
	exec 3<&- 3>&-
	break
	fi
	echo "waiting for postgres ($i/30)..."
	sleep 2
	done
	# api/ and web/ get built by e2e/global-setup.ts itself (playwright's own
	# globalSetup, unconditional on every `playwright test` run) — only
	# agent/ needs building here, since global-setup.ts predates that
	# package and does not know about it.
	- pnpm build:shared
	- pnpm --filter @ship/agent build
	- pnpm exec playwright install --with-deps chromium
	- pnpm exec playwright test e2e/agent-detection-latency.spec.ts e2e/agent-chat-grounded-response.spec.ts --workers=1
	script:
	- |
	pg_ready=0
	for i in $(seq 1 30); do
	if (exec 3<>/dev/tcp/postgres/5432) 2>/dev/null; then
	exec 3<&- 3>&-
	pg_ready=1
	break
	fi
	echo "waiting for postgres ($i/30)..."
	sleep 2
	done
	if [ "$pg_ready" -ne 1 ]; then
	echo "postgres never accepted connections on postgres:5432 after 60s" >&2
	exit 1
	fi
	# api/ and web/ get built by e2e/global-setup.ts itself (playwright's own
	# globalSetup, unconditional on every `playwright test` run) — only
	# agent/ needs building here, since global-setup.ts predates that
	# package and does not know about it.
	- pnpm build:shared
	- pnpm --filter `@ship/agent` build
	- pnpm exec playwright install --with-deps chromium
	- pnpm exec playwright test e2e/agent-detection-latency.spec.ts e2e/agent-chat-grounded-response.spec.ts --workers=1

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In @.gitlab-ci.yml around lines 117 - 134, Update the Postgres wait loop in the
CI script to track whether the connection succeeds, and exit non-zero after all
30 attempts if it never does. Preserve the existing cleanup, retry logging, and
subsequent build/test commands only for the successful connection path.

[coderabbitai]

📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Pin the inclusive threshold boundaries and the missing-value case.

The range check in parseThreshold is parsed < 0 || parsed > 1, so 0 and 1 are both valid. No test asserts that. A future edit to <= 0 or >= 1 would keep this suite green while rejecting a legitimate threshold.

--threshold passed as the final argument is also untested. That path reaches raw === undefined, then NaN, then the throw.

💚 Proposed additions

   it('rejects a non-numeric threshold', () => {
     expect(() => parseThreshold(['--threshold', 'high'])).toThrow(/between 0 and 1/);
   });
+
+  // 0 and 1 are both inside the accepted range — pinned so a later
+  // `<= 0`/`>= 1` edit cannot tighten the bound unnoticed.
+  it('accepts the inclusive bounds 0 and 1', () => {
+    expect(parseThreshold(['--threshold', '0'])).toBe(0);
+    expect(parseThreshold(['--threshold', '1'])).toBe(1);
+  });
+
+  it('rejects --threshold with no value following it', () => {
+    expect(() => parseThreshold(['--threshold'])).toThrow(/between 0 and 1/);
+  });
 });

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	it('rejects a threshold outside [0, 1]', () => {
	expect(() => parseThreshold(['--threshold', '1.5'])).toThrow(/between 0 and 1/);
	expect(() => parseThreshold(['--threshold', '-0.1'])).toThrow(/between 0 and 1/);
	});
	it('rejects a non-numeric threshold', () => {
	expect(() => parseThreshold(['--threshold', 'high'])).toThrow(/between 0 and 1/);
	});
	it('rejects a threshold outside [0, 1]', () => {
	expect(() => parseThreshold(['--threshold', '1.5'])).toThrow(/between 0 and 1/);
	expect(() => parseThreshold(['--threshold', '-0.1'])).toThrow(/between 0 and 1/);
	});
	it('rejects a non-numeric threshold', () => {
	expect(() => parseThreshold(['--threshold', 'high'])).toThrow(/between 0 and 1/);
	});
	// 0 and 1 are both inside the accepted range — pinned so a later
	// `<= 0`/`>= 1` edit cannot tighten the bound unnoticed.
	it('accepts the inclusive bounds 0 and 1', () => {
	expect(parseThreshold(['--threshold', '0'])).toBe(0);
	expect(parseThreshold(['--threshold', '1'])).toBe(1);
	});
	it('rejects --threshold with no value following it', () => {
	expect(() => parseThreshold(['--threshold'])).toThrow(/between 0 and 1/);
	});

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@agent/src/__tests__/golden-set-compare.test.ts` around lines 13 - 20, Add
tests in the golden-set threshold suite for parseThreshold accepting inclusive
boundary values 0 and 1, and rejecting --threshold when it is the final argument
with no value. Keep the assertions aligned with the existing range-error
behavior.

[coderabbitai]

🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

The test name promises an activity check that the body does not perform.

The title states that "every fixture has both real activity and a written reference". The body asserts only referenceDraft.trim().length and fixture.id.trim().length. It never reads fixture.activity.

A fixture whose moved, commented, and stale arrays are all empty passes this test today. That is the exact fixture that would make the divergence test above meaningless, because the rich prompt and the stripped prompt would carry identical content.

Assert the property the name claims:

💚 Proposed fix: check the activity the title refers to

     for (const fixture of GOLDEN_FIXTURES) {
       expect(fixture.referenceDraft.trim().length).toBeGreaterThan(20);
       expect(fixture.id.trim().length).toBeGreaterThan(0);
+      // The "real activity" half of this test's own claim. A fixture with
+      // three empty arrays would make the divergence assertions above
+      // vacuous: stripping an already-empty context changes nothing.
+      const { moved, commented, stale } = fixture.activity;
+      expect(
+        moved.length + commented.length + stale.length,
+        `fixture "${fixture.id}" must carry at least one activity item to be strippable`
+      ).toBeGreaterThan(0);
     }

As per path instructions: "Flag tests containing only comments or TODOs with no assertion" — the related risk here is an assertion set narrower than the stated guarantee.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	it('GOLDEN_FIXTURES is non-trivial and every fixture has both real activity and a written reference', () => {
	expect(GOLDEN_FIXTURES.length).toBeGreaterThanOrEqual(3);
	for (const fixture of GOLDEN_FIXTURES) {
	expect(fixture.referenceDraft.trim().length).toBeGreaterThan(20);
	expect(fixture.id.trim().length).toBeGreaterThan(0);
	}
	});
	it('GOLDEN_FIXTURES is non-trivial and every fixture has both real activity and a written reference', () => {
	expect(GOLDEN_FIXTURES.length).toBeGreaterThanOrEqual(3);
	for (const fixture of GOLDEN_FIXTURES) {
	expect(fixture.referenceDraft.trim().length).toBeGreaterThan(20);
	expect(fixture.id.trim().length).toBeGreaterThan(0);
	// The "real activity" half of this test's own claim. A fixture with
	// three empty arrays would make the divergence assertions above
	// vacuous: stripping an already-empty context changes nothing.
	const { moved, commented, stale } = fixture.activity;
	expect(
	moved.length + commented.length + stale.length,
	`fixture "${fixture.id}" must carry at least one activity item to be strippable`
	).toBeGreaterThan(0);
	}
	});

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@agent/src/__tests__/goldenSet.test.ts` around lines 145 - 151, Update the
test around GOLDEN_FIXTURES to assert that each fixture has real activity by
checking that its moved, commented, or stale collections are not all empty,
while preserving the existing referenceDraft and id assertions.

Source: Path instructions

[coderabbitai]

🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Validate the complete polling configuration.

A fractional attempts value produces a different number of samples than requested. NaN returns an empty sample list. A negative or non-finite intervalMs also bypasses validation.

Require a finite integer attempts >= 1 and a finite integer intervalMs >= 0. Direct callers bypass the CLI validation.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@agent/src/deployReadiness.ts` around lines 131 - 133, Update the
pollReadiness configuration validation to require attempts to be finite integers
at least 1, and intervalMs to be finite integers at least 0. Ensure these checks
reject fractional, NaN, infinite, and negative values before polling begins,
covering direct callers that bypass CLI validation.

[coderabbitai]

🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

Bound each readiness request.

fetcher.get(url) can remain pending forever. The catch block handles rejections only. A stalled /ready connection prevents further samples and prevents a rollback decision.

Add a per-request timeout with cancellation. Record a timeout as a failed sample. Test a fetcher that never resolves.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@agent/src/deployReadiness.ts` around lines 136 - 150, Update the readiness
sampling loop around fetcher.get in the deploy-readiness function to enforce a
per-request timeout using cancellation, ensuring stalled requests reject or
abort and execution proceeds to the next sample. Record timed-out requests as
failed samples with a clear timeout reason, while preserving existing handling
for HTTP failures and other errors. Add coverage for a fetcher that never
resolves.

[coderabbitai]

📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Replace the hand-rolled poll loop with expect.poll.

The loop is correct, and the review-pattern-ok annotation states valid grounds for the 500 ms interval. expect.poll expresses the same intent with less bookkeeping: Playwright owns the deadline and the interval, and it reports the last observed value on failure. That removes the manual deadlineAt arithmetic, the lastBody variable, and the surfacedAtMs optional entirely, which also resolves the non-null assertion flagged above.

One behavior differs and matters: expect.poll measures the time at which the assertion passes, not the exact instant the item appeared. Capture the timestamp inside the polled callback to keep the measurement precise.

♻️ Proposed shape

let surfacedAtMs = 0;
await expect
  .poll(
    async () => {
      const inboxRes = await page.request.get(`${agentShip.apiUrl}/api/agent/inbox`);
      expect(inboxRes.ok(), await inboxRes.text()).toBe(true);
      const body = (await inboxRes.json()) as { items: InboxItem[] };
      const found = body.items.some(
        (item) => item.type === 'mention' && item.evidence.documentId === agentShip.probeDocumentId
      );
      if (found) surfacedAtMs = Date.now();
      return found;
    },
    { timeout: DEADLINE_MS, intervals: [500], message: 'mention never appeared in Bob\'s inbox' }
  )
  .toBe(true);

const observedMs = surfacedAtMs - writeAtMs;

As per coding guidelines: "Wait for positive asynchronous UI conditions with retrying assertions instead of performing point-in-time checks after a fixed delay."

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@e2e/agent-detection-latency.spec.ts` around lines 87 - 111, The hand-rolled
polling in the agent inbox check should use Playwright’s expect.poll instead.
Replace the deadlineAt/lastBody loop and surfacedAtMs optional bookkeeping with
an expect.poll callback that fetches and validates the inbox, records
surfacedAtMs inside the callback when the matching mention is found, and returns
the found status. Configure DEADLINE_MS, a 500ms interval, and the specified
failure message, then compute observedMs from the resulting non-optional
timestamp.

Source: Coding guidelines

[coderabbitai]

📐 Maintainability & Code Quality | 🟠 Major | ⚡ Quick win

Remove the new non-null assertion on surfacedAtMs.

Line 119 uses surfacedAtMs!. The path instructions forbid new non-null assertions in this monorepo. expect(...).toBeDefined() on line 117 does not narrow the type for TypeScript, so the assertion is load-bearing here rather than cosmetic.

Narrow with a real check instead.

🛠️ Proposed fix

-    expect(
-      surfacedAtMs,
-      `mention never appeared in Bob's inbox within ${DEADLINE_MS}ms. Last GET /api/agent/inbox ` +
-        `response: ${JSON.stringify(lastBody)}`
-    ).toBeDefined();
-
-    const observedMs = surfacedAtMs! - writeAtMs;
+    if (surfacedAtMs === undefined) {
+      throw new Error(
+        `mention never appeared in Bob's inbox within ${DEADLINE_MS}ms. Last GET /api/agent/inbox ` +
+          `response: ${JSON.stringify(lastBody)}`
+      );
+    }
+
+    const observedMs = surfacedAtMs - writeAtMs;

As per path instructions: "New any, as any, or non-null ! assertions. The repo is reducing these (findings TS-2, TS-4, TS-7); new ones move the number backwards."

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	expect(
	surfacedAtMs,
	`mention never appeared in Bob's inbox within ${DEADLINE_MS}ms. Last GET /api/agent/inbox ` +
	`response: ${JSON.stringify(lastBody)}`
	).toBeDefined();
	const observedMs = surfacedAtMs! - writeAtMs;
	if (surfacedAtMs === undefined) {
	throw new Error(
	`mention never appeared in Bob's inbox within ${DEADLINE_MS}ms. Last GET /api/agent/inbox ` +
	`response: ${JSON.stringify(lastBody)}`
	);
	}
	const observedMs = surfacedAtMs - writeAtMs;

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@e2e/agent-detection-latency.spec.ts` around lines 113 - 119, Remove the
non-null assertion from the observedMs calculation in the agent-detection
latency test. After the surfacedAtMs expect, add an explicit runtime check that
confirms surfacedAtMs is defined, then calculate observedMs only within the
narrowed path while preserving the existing failure behavior and timing
calculation.

Source: Path instructions

[coderabbitai]

🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

Add a per-request timeout so waitForServer cannot hang past timeoutMs.

fetch(url) has no timeout. The loop only re-evaluates Date.now() - start < timeoutMs after each fetch settles. If a spawned process accepts the TCP connection but never sends a response, the fetch promise stays pending and this function never throws the intended did not start within ${timeoutMs}ms error. The worker fixture then hangs until Playwright's global timeout, with no diagnostic. A partially started vite preview or node dist/index.js is exactly that case.

Bound each attempt so the deadline is real.

🛠️ Proposed fix to bound each probe

 async function waitForServer(url: string, timeoutMs: number): Promise<void> {
   const start = Date.now();
   let lastError: unknown;
   while (Date.now() - start < timeoutMs) {
     try {
-      const res = await fetch(url);
+      const res = await fetch(url, { signal: AbortSignal.timeout(2_000) });
       if (res.ok || res.status === 401 || res.status === 403 || res.status === 503) {

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@e2e/fixtures/agentEnv.ts` around lines 82 - 102, Update waitForServer so each
fetch attempt is bounded by the remaining timeout, ensuring a stalled request
cannot prevent the function from reaching its timeout error. Apply the
per-request timeout around fetch, record timeout failures in lastError, and
preserve the existing successful-status checks, retry delay, and final
diagnostic error.

[coderabbitai]

📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Attach error and exit listeners so a child that dies is reported directly.

No spawn attaches an error or exit listener. If a child exits immediately, waitForServer polls a closed port for the full 30 seconds and then throws a generic did not start within 30000ms error. The real cause — the exit code and signal — is discarded. This applies to all three spawns; the api spawn is the first and sets the pattern.

The web spawn is the concrete case. In .github/workflows/ci.yml the e2e-agent job builds only shared and agent, and relies on e2e/global-setup.ts to build api and web. If that build did not produce web/dist, npx vite preview exits at once and this fixture reports a 30-second timeout instead of the missing build.

Record the exit and include it in the failure message.

🛠️ Proposed helper to attribute an early exit

function trackEarlyExit(proc: ChildProcess, label: string): { readonly exit: string | null } {
  const state = { exit: null as string | null };
  proc.on('error', (err) => { state.exit = `${label} failed to spawn: ${String(err)}`; });
  proc.on('exit', (code, signal) => { state.exit = `${label} exited early (code=${code}, signal=${signal})`; });
  return state;
}

Then fail fast instead of waiting out the probe:

 apiProc.stderr?.on('data', (d) => console.error(`${tag} api: ${d.toString().trim()}`));
-await waitForServer(`${apiUrl}/health`, 30_000);
+const apiExit = trackEarlyExit(apiProc, 'api');
+await waitForServer(`${apiUrl}/health`, 30_000).catch((err) => {
+  throw new Error(apiExit.exit ?? String(err));
+});

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@e2e/fixtures/agentEnv.ts` around lines 336 - 352, Attach error and exit
listeners to every spawned child process, including the api spawn and the
corresponding web and agent spawns, using a shared early-exit tracking pattern.
Record spawn errors and exit code/signal, then make the server-startup flow fail
immediately with that recorded detail instead of allowing waitForServer to poll
until its timeout; preserve normal readiness behavior for processes that remain
running.

[coderabbitai]

🩺 Stability & Availability | 🟠 Major | ⚡ Quick win

Release the child processes and the scratch database in a finally block.

The four cleanup statements run only when the fixture body reaches them. Playwright propagates a throw from worker-fixture setup and from use(), so every failure path skips cleanup:

• setUpDatabase throws → the scratch database stays on the server.
• mintApiToken throws → the api process and the scratch database both leak.
• waitForServer throws for the agent or the web process → every process started before it leaks, plus the database.

In CI the orphaned node and vite processes keep holding their ports. Locally the base URL points at a developer's own Postgres server, as createScratchDatabase's comment states, so each failed run leaves another ship_e2e_agent_* database behind permanently.

Move the cleanup into a finally block so it runs on every path.

🛠️ Proposed fix to guarantee teardown

       const scratch = await createScratchDatabase(baseDatabaseUrl);
       const databaseUrl = scratch.url;
       if (debug) console.log(`${tag} created scratch database ${scratch.dbName}`);
+
+      let apiProc: ChildProcess | undefined;
+      let agentProc: ChildProcess | undefined;
+      let webProc: ChildProcess | undefined;
+      try {

Assign the three processes to those outer variables instead of redeclaring them with const, then close the fixture like this:

-      await use({
-        apiUrl,
-        ...
-        bobApiToken,
-      });
-
-      webProc.kill('SIGTERM');
-      agentProc.kill('SIGTERM');
-      apiProc.kill('SIGTERM');
-      await dropScratchDatabase(scratch.adminUrl, scratch.dbName);
+        await use({
+          apiUrl,
+          ...
+          bobApiToken,
+        });
+      } finally {
+        webProc?.kill('SIGTERM');
+        agentProc?.kill('SIGTERM');
+        apiProc?.kill('SIGTERM');
+        await dropScratchDatabase(scratch.adminUrl, scratch.dbName);
+      }

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@e2e/fixtures/agentEnv.ts` around lines 409 - 427, Move process termination
and scratch-database cleanup into a finally block surrounding the fixture setup
and use() flow. Assign the API, agent, and web child processes to the existing
outer variables rather than redeclaring them locally, then conditionally
terminate any process that was started and call dropScratchDatabase with the
created scratch database so cleanup runs when setup, token minting, server
waits, or use() throws.