Files
holocron/docs/issues/0017-factory-write-eval.md
Defame1297 c705a38809 docs: issue 0016 — skill implementation workflow grill
Produces docs/notes/skill-implementation-workflow.md with agreed conventions
for all Chunk 3 skill issues (0017–0028). Key decisions:

- Per-skill process: source discovery (sub-agent) → source review with
  licence/security check (sub-agent) → conflict check vs constitution +
  factory principles (sub-agent) → synthesis grill → co-write iteratively
- Bootstrap: write-eval (hand-written) → write-skill (hand-written) →
  write-docs (first factory-authored, phase 2 of 0018) → everything else
- Upstream review changed from per-chunk-start to per-skill
- `when:` and `references:` frontmatter fields added to authoring standard
- Sub-agent usage prescribed as named steps in the workflow
- HITL: human reviewed and approved conventions

Updates: PRD implementation decisions; issues 0016–0028 with specific
acceptance criteria; docs/spec/overview.md; ROADMAP Chunk 3 housekeeping note
(bootstrap order, cadence, acceptance criteria status); CONTEXT.md Source field
(per-skill cadence, references: companion field); LESSONS.md with three patterns
from the grill session.

Post-grill additions (same session): Step 6 (session handoff) added to the
workflow; handoff section appended to issue 0016; handoff checklist item added
to Chunk 3 closure issue (0028).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-17 17:06:35 +00:00

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# 0017 — factory/write-eval (bootstrap skill)
**Type:** HITL
**Parent PRD:** `docs/prd/chunk-3-skills-library.md`
## What to build
Build `write-eval` — the first factory meta-skill, bootstrapped with a hand-written eval for itself. Every subsequent skill in Chunk 3 gets its eval produced via this skill. This issue is the smallest unblocker: get `write-eval` and its own hand-crafted eval in place, then all later skill issues can use it.
**Trigger description** (from skills index): "Write evals for this skill, create eval.yaml for X, add tests for this skill"
**Key constraints:**
- Skill file (slash command): `.agents/skills/write-eval/SKILL.md` — flat per ADR-0009; `metadata.category: factory`
- Produces eval files at: `.agents/evals/<category>/<skill-name>/eval.yaml` — nested by category (not skills; no discovery constraint)
- Every eval must contain: ≥1 explicit trigger test, ≥1 implicit trigger test, ≥1 negative trigger test (adjacent task that must NOT activate), ≥2 deterministic output tests (schema/contains/regex), ≥1 LLM-rubric quality test
- For this first issue: write-eval's own eval is hand-crafted (write-eval cannot produce its own eval before it exists)
- Origin: new skill; `source:` field populated only if upstream content is adopted (determine during implementation)
Process: follow `docs/notes/skill-implementation-workflow.md`. Bootstrap exception: steps 1–3 (source discovery, source review, conflict check) still apply; SKILL.md and eval.yaml are hand-written rather than factory-produced.
## Implementation notes
Follow the per-skill workflow defined in `docs/notes/skill-implementation-workflow.md` (produced by issue 0016).
**Known upstream sources to review:**
- `mattpocock/skills` — check for any eval-related content in the current set; record SHAs for any adopted content
- `bmad-method/bmad-method` — check for QA/evaluation patterns relevant to skill testing
- agentskills.io open standard — check whether an eval format is defined at the standard level before designing one from scratch; the eval schema in the PRD (5 test types) is derived from the factory design doc and may benefit from cross-referencing the standard
write-eval has no direct Pocock equivalent. Expect to synthesize from multiple upstreams or author original.
## Acceptance criteria
- [ ] `.agents/skills/write-eval/SKILL.md` exists; `metadata.category: factory`; authoring standard met (frontmatter, role, when/when-not, required inputs, constraints, process, output format, failure handling)
- [ ] Trigger description matches index or deviation is documented in SKILL.md with justification
- [ ] `.agents/evals/factory/write-eval/eval.yaml` exists; hand-written; contains all 5 required test types
- [ ] `install.sh` deploys `write-eval` to `~/.agents/skills/` (confirm idempotent re-run)
- [ ] **HITL:** human runs fresh-session behavioral test: invoke "write evals for this skill" and verify correct eval.yaml structure is produced
- [ ] **HITL:** human reviews hand-written eval.yaml for correctness before committing
- [ ] Per-skill process followed: source discovery (sub-agent) → source review with licence/security check (sub-agent) → conflict check against constitution + factory principles (sub-agent) → synthesis grill → co-write iteratively
- [ ] Trigger description tested against explicit, implicit, and negative queries before body was written
- [ ] `when:` frontmatter field present
- [ ] `source:` field present only if upstream content adopted; absent if self-authored
- [ ] `references:` field present if external citations used; absent otherwise
- [ ] eval.yaml contains all 5 required test types: explicit trigger, implicit trigger, negative trigger, ≥2 deterministic output, ≥1 LLM-rubric quality
- [ ] Body ≤500 lines; XML tags used only if ≥3 logical sections and 500+ tokens
- [ ] `docs/spec/overview.md` updated to reflect `write-eval` deployed
## Blocked by
- 0016 (grill defines the per-skill implementation workflow this issue must follow)