feat(evi): add the daily content pass with its review and rewrite subagents

[HugoRCD]

Stacked on #586.

The loop that uses the doctrine: a daily pass that ranks the corpus, fixes what is derivable, reviews what is left, applies what holds, and opens one draft PR whose body is the report.

Two subagents, not one

content_review reports. content_rewrite applies. They never share a context, and that separation is the mechanism rather than tidiness.

A reviewer that can edit stops producing findings it cannot fix, and those are the valuable ones: a landing claim no page keeps, a skill procedure that needs a decision, a comparison that contradicts its dossier. A rewriter that re-judges its own output passes it, every time.

content_review also carries content_scan, so it can scan a file the pass did not pick, a passage on its own, or an external URL when the candidates it was handed are not enough.

What the pass may change, and where it stops

A skill or an AGENTS.md governs the agent running the pass. It may fix a house rule there and nothing else; procedure, bounds, and a skill's description come back as findings. content__targets enforces that mechanically by returning those files with mode report, and governed-surfaces.eval.ts checks the agent honours it.

The landing page is report too, absent a critical finding.

Order of operations

1. content__targets ranks the corpus and picks one group
2. --fix applies the derivable findings, committed on its own
3. targets are re-selected, so a file whose findings were all mechanical never reaches a model
4. review in parallel, then rewrite in parallel
5. verify, then one draft PR

Evals

Three, against the fixtures from #585: the saturated page must not pass, the clean page must not be flagged, and a request to reword a skill's procedure must come back as a proposal.

They only work once merged, since sandboxes check out origin/main and the fixtures have to exist there. None is tagged fast for that reason.

Schedule

Daily at 06:00 UTC, after the digest and before upstream-sync, cost-watchdog, repo-health-sweep, linear-maintenance and self-review.

The first firing will be the first end-to-end run. It opens a draft PR and reports one line to the thread, so the failure mode is a draft to close, not a merge. Worth reading that first one closely.

Checks

129 evi tests, typecheck clean. No changeset: apps/* only.

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📥 Commits

Reviewing files that changed from the base of the PR and between 68849a9 and d9efd7a.

📒 Files selected for processing (21)

• .github/workflows/evi-evals.yml
• apps/evi/agent/instructions.md
• apps/evi/agent/lib/content/scan.test.ts
• apps/evi/agent/lib/content/scan.ts
• apps/evi/agent/lib/content/selection.test.ts
• apps/evi/agent/lib/content/selection.ts
• apps/evi/agent/schedules/content-pass.ts
• apps/evi/agent/skills/content-pass/SKILL.md
• apps/evi/agent/subagents/content_review/agent.ts
• apps/evi/agent/subagents/content_review/instructions.md
• apps/evi/agent/subagents/content_review/sandbox/sandbox.ts
• apps/evi/agent/subagents/content_review/tools/content_scan.ts
• apps/evi/agent/subagents/content_rewrite/agent.ts
• apps/evi/agent/subagents/content_rewrite/instructions.md
• apps/evi/agent/subagents/content_rewrite/sandbox/sandbox.ts
• apps/evi/agent/tools/content-targets.ts
• apps/evi/docs/capability-placement.md
• apps/evi/evals/content/detects-generated-prose.eval.ts
• apps/evi/evals/content/governed-surfaces.eval.ts
• apps/evi/evals/content/helpers.ts
• apps/evi/evals/content/passes-written-prose.eval.ts

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Thank you for following the naming conventions! 🙏

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