| name | update-docs |
| description | Use when the user invokes `/update-docs <app-name>` to update Crucible application documentation to reflect the current state of a running app. Triggers a plan-driven documentation update workflow that browses the live app via Playwright, cross-references existing Playwright tests, produces or refreshes a plan file, waits for user approval, implements the approved plan, and validates linting. |
update-docs
Overview
Crucible documentation in /mnt/data/crucible/crucible-docs/ drifts from the real apps. This skill runs a disciplined, verified documentation update for one app at a time.
Arg: <app-name> — lowercase directory name matching both crucible-docs/docs/<app-name>/ and crucible-tests/<app-name>/ (e.g. blueprint, player, cite, gallery, steamfitter, caster, alloy, topomojo, gameboard).
Core contract:
- Verify claims against the running app via Playwright. Tests and existing docs are hints, not truth.
- Never implement without a user-approved plan.
- Lint must pass at the end.
Workflow
┌─────────────────────────────────────────────────────────────┐
│ 1. CONTEXT GATHERING │
│ - Verify app is running via Aspire │
│ - Main agent: Read full current docs into context │
│ - Haiku subagent (parallel): digest tests as hints │
│ - Main agent: read any existing plan in plans/ │
├─────────────────────────────────────────────────────────────┤
│ 2. LIVE VERIFICATION (main agent) │
│ - Playwright: log in, browse every sidebar/nav area │
│ - For each doc claim + test claim, check against app │
│ - Audit screenshots; capture replacements into plans/img │
│ - Build a diff list: doc wrong / test wrong / both OK │
├─────────────────────────────────────────────────────────────┤
│ 3. PLAN (main agent) │
│ - Write plans/<app>-update-plan.md │
│ - If plan already existed, reconcile + rewrite │
│ - Include replacement copy, not just bullet points │
│ - Ask user to confirm before implementing │
├─────────────────────────────────────────────────────────────┤
│ 4. IMPLEMENTATION (main agent) │
│ - Only after user approval │
│ - Apply edits directly; main agent already has doc │
│ - Match existing doc style and conventions │
├─────────────────────────────────────────────────────────────┤
│ 5. LINT VALIDATION (main agent) │
│ - Run /mnt/data/crucible/crucible-docs/lint-docs.sh │
│ - Fix errors by editing content, NOT rules │
│ - Only touch .vale.ini / .markdownlint-cli2.yaml if │
│ absolutely unavoidable, and tell the user why │
└─────────────────────────────────────────────────────────────┘
Step 1 — Context gathering
1a. Confirm the app is running — call mcp__aspire__list_resources and check that the app's API and UI resources are Running / Healthy. If not, stop and tell the user to start Aspire.
1b. Read the current docs fully into main context. Use Read on /mnt/data/crucible/crucible-docs/docs/<app>/index.md with no offset. Do not summarize via subagent. You will be writing replacement copy that matches the existing style (admonition conventions, heading depth, numbered-step format, table layouts) and citing specific line numbers — a summary loses that fidelity. Typical doc is 1000–2000 lines / ~15–25k tokens, which fits fine.
1c. Dispatch a Haiku subagent (in parallel with 1b if practical) to digest the tests. Tests are a hint source, not something you edit, so a summary is fine. Prompt template:
Read the Playwright test plan at /mnt/data/crucible/crucible-tests/<app>/<app>-test-plan.md if present, plus the directory structure of /mnt/data/crucible/crucible-tests/<app>/tests/. Return a list of feature areas covered and the specific claims each test asserts about the running app (button names, tabs, URL routes, statuses, field names). Under 800 words. Do not editorialize.
1d. Main agent: check plans/<app>-update-plan.md in crucible-docs. If it exists, read it fully. Treat it as one more hint, not truth — it may describe changes already implemented.
Why this split: Doc content is the thing you'll edit, so it must be in main context at full fidelity. Test content is just a cross-reference signal, so a subagent summary is enough and keeps the token budget available for live-app verification and plan drafting.
Step 2 — Live verification
Set up Playwright once per session. For Crucible, the existing seed file is at /mnt/data/crucible/crucible-tests/seed.spec.ts. Use mcp__playwright-test__planner_setup_page with no arguments (uses default seed), then navigate to the app's UI URL.
Auth is Keycloak at https://localhost:8443, user admin / password admin. See /mnt/data/crucible/crucible-tests/shared-fixtures.ts for the shared auth helper if you need it.
For each doc/test claim:
- Open the relevant UI area via
browser_navigate or browser_click.
- Use
browser_snapshot to inspect the accessibility tree (preferred over screenshots — faster, structured).
- Record: matches / doc wrong / test wrong / both wrong. Note exact button labels, tab names, dropdown options.
Minimum coverage per app:
- Login landing page + topbar
- Primary nav (sidebar or top tabs) — every top-level item
- Admin section (if present) — every admin page
- Detail view for at least one representative object
- At least one create/edit form (just open it; don't save)
- Any URL patterns mentioned in docs (copyable URLs, direct-access routes)
Don't try to execute destructive flows (delete, push integrations, launch event) unless the user asked for it.
Screenshot audit
While browsing the app, check every  reference in the doc against the live UI.
- Parse all image references from the doc (step 1b loaded it). Each reference points to a file under
docs/<app>/img/.
- For each referenced screenshot, navigate to the matching UI view in Playwright.
- Visually compare the existing image (use
Read on the .png to view it) against a fresh mcp__playwright-test__browser_take_screenshot of the same view. Consider a screenshot stale if any of these are true:
- UI elements shown in the old screenshot no longer exist
- New elements are present that the old screenshot doesn't show
- Labels, titles, or wording differs
- Layout/branding has materially changed (e.g. new topbar, theme overhaul)
- For each stale screenshot, save a replacement via
browser_take_screenshot into /mnt/data/crucible/crucible-docs/plans/img/<same-filename>.png. Keep the same filename so the eventual swap-in is a straight file replace.
- Match framing to the original as closely as possible: same viewport (1920×1080 is the Playwright config default), same logical view, same dropdowns/menus open-or-closed. If the original showed an expanded dialog or menu, expand the same one before capturing.
- Do NOT overwrite files in
docs/<app>/img/ directly — all proposed replacements live under plans/img/ until the user approves the plan.
If a doc references an image that doesn't exist at all (broken link), flag that in the plan too.
Step 3 — Plan
Write /mnt/data/crucible/crucible-docs/plans/<app>-update-plan.md. Create the plans/ dir if missing (it's gitignored).
Plan must contain:
- Header: target file, branch, app version observed, verification method.
- Executive summary: 3–6 bullet buckets of change.
- Section-by-section edits. For every change:
- Cite the line numbers or heading the change applies to
- Provide replacement copy, not just "update X"
- Explain why (what the app actually does)
- Screenshot updates — dedicated section listing every stale screenshot found in step 2's audit. For each: the image filename, the doc section/heading that references it, why it's stale (one line), and the path to the proposed replacement under
plans/img/. Also list any broken image references (referenced file doesn't exist).
- Flagged-for-verification list for any claim you could not confirm in this pass (e.g. integration enabled only in deployed state).
- Execution checklist — unchecked TodoWrite-style list of every concrete edit, including "Replace
img/<filename>.png with plans/img/<filename>.png" entries for each stale screenshot.
- Out of scope section so the user knows what's deliberately untouched.
Reconciliation rule when a prior plan exists: re-verify every section of the old plan against the live app. Keep what's still valid, delete what's already implemented, add what's newly out of sync. The final plan is a full rewrite, not a diff.
Style matching: before drafting replacement copy, skim 2–3 completed sections in the current docs to match:
- Heading depth conventions
- Step list style (numbered vs. bulleted, "To add a X" vs. imperative)
- Whether tables or lists are used for field inventories
- Admonition style (
!!! note, !!! important)
Once written, present the plan path and a one-paragraph summary to the user and explicitly ask for confirmation before step 4. Do not start implementing without approval.
Step 4 — Implementation
After user approval, apply the plan directly from the main agent using Edit (and Write only for full rewrites). Reasons to stay in main context:
- The doc is already loaded from step 1b.
- The plan contains verbatim replacement copy — implementation is mechanical, not judgment-heavy.
- It's one file; no parallelism available.
- Step 5 (lint) may require content edits and benefits from main-agent familiarity with the doc.
Work through the plan's Execution Checklist in order. Preserve existing style (heading depth, table/list conventions, admonition usage). Do not make changes outside what the plan prescribes.
Screenshot replacements: for each stale screenshot approved in the plan, replace the old file with a versioned copy:
- Determine the new filename by incrementing the version suffix. If the existing file has no version suffix (e.g.
screenshot.png), the new name is screenshot-v2.png. If it already has a suffix (e.g. screenshot-v2.png), increment it (screenshot-v3.png).
- Copy
plans/img/<filename>.png to docs/<app>/img/<new-versioned-filename>.png via Bash cp.
- Delete the old file via Bash
rm.
- Update every
 reference in the doc to .
Leave plans/img/ intact as an audit trail until the user cleans the plans directory.
Step 5 — Lint validation
Run the docs repo's lint script:
cd /mnt/data/crucible/crucible-docs && bash lint-docs.sh
This runs vale and markdownlint-cli2. If either fails:
- Read the errors carefully.
- Fix by editing content. Rephrase, break long lines, add alt text, correct heading levels.
- Do NOT edit
.vale.ini, .vale/ styles, or .markdownlint-cli2.yaml unless there is no reasonable content fix. If you absolutely must touch a rule, tell the user why and what you changed before committing.
Re-run until clean. Report final status and the path of the updated doc. Do not delete the plan document — leave plans/<app>-update-plan.md in place after implementation so it can be referenced later.
Quick reference — typical discrepancies
| Symptom | Usual cause |
|---|
| Doc references buttons that don't exist | UI was refactored; doc wasn't updated |
| Doc missing entire sections/tabs | Features added without doc update |
| Doc uses outdated terminology | Rename happened (e.g. "Role" → "Duty") |
| Test asserts specific version string | Test hard-coded a pre-release version |
Doc has <!-- TODO --> stubs | Prior update left unfinished |
| Docs describe Player/Gallery/CITE flows inline | Integration behavior changed; cross-reference |
| Screenshot shows missing tabs or old branding | UI refactor since last capture |
Common mistakes
- Implementing without the plan being approved. Always wait for user confirmation.
- Trusting the test file. Tests drift too. Live app wins.
- Skipping the live verification for "obvious" sections. Every section must be eyeballed in the real app at least once.
- Loosening lint rules to avoid fixing content. Be conservative; content fixes are almost always possible.
- Dispatching a subagent for implementation. The main agent already has the doc loaded and the plan is mechanical — editing directly is faster and preserves fidelity.
- Not reconciling a stale plan file. Old plans may describe changes already implemented. Re-verify.
Red flags — stop and re-check
- About to write replacement copy for a section you haven't viewed in the live app: stop, browse it first.
- About to claim "matches" for a section based only on doc + test agreement: stop, verify in app.
- About to edit
.vale.ini to silence an error: stop, try a content fix first.
- About to skip the lint step because "it was probably fine": run it anyway.
File layout this skill produces
/mnt/data/crucible/crucible-docs/
├── plans/ # gitignored
│ ├── <app>-update-plan.md # this skill writes/rewrites this
│ └── img/ # proposed screenshot replacements
│ └── <filename>.png
└── docs/<app>/
├── index.md # this skill edits this
└── img/
└── <filename>.png # step 4 copies from plans/img/
