Task

Execute the requested action: $ARGUMENTS

Calling rule: /lint <action>.

If the requested action is ambiguous or contradictory, do NOT guess: flag it and ask for clarification before executing.

If action is empty

Describe this skill: its purpose and the actions table from "overview". Do not execute anything.

If action is "overview" (or unknown)

If the action was unknown, say so first, then show the table.

If action is "markdown" (also part of "all")

1. Run npx --yes markdownlint-cli2 --fix "**/*.md" from the workspace root (config: .markdownlint.json, shipped with the workspace; if it is missing, create it with defaults and MD013 disabled).
2. Report anything not auto-fixed and fix those manually.

If action is "vault" (also part of "all")

1. Delegate to the vault-gardener subagent. It owns the check list, the severity report, and the safe-fix rules.
2. Relay its report to the user unchanged.
3. For every "Needs your decision" item the user approves, apply the proposed fix, then re-run the affected check to confirm.

If action is "structure" (also part of "all")

Checks the hierarchy rules of root CLAUDE.md (Hierarchy Protocol, Output Hygiene & Naming, Task ID Protocol) against what is actually on disk. Registries are the source of truth: vault/projects/<project>/ids.md for projects, vault/workstations/<workstation>/areas.md for workstations.

1. Depth declared. Every project and workstation must carry a Levels: **2** or Levels: **3** line in its registry. Missing → report it; do not guess the depth from the folders.
2. Depth respected.
   • 2-level: no sub-unit folders at all; every WP/WA sits directly under the project or workstation.
   • 3-level: no WP/WA directly under the project or workstation; every one of them sits inside a numbered sub-unit. A violation is never auto-fixed — moving a WP renumbers it and rewrites task IDs, which is a /setup migration. Report and stop there.
3. Numbering. Every sub-unit, WP and WA folder carries a zero-padded numeric prefix. Numbers are unique within their parent — duplicates inside one sub-project are an error; the same number reused across two sub-projects is correct and expected at 3 levels.
4. Naming convention. Every generated folder and file name is Latin-alphabet kebab-case (fixed-name and prefix exceptions per root CLAUDE.md). Report violations; renaming is a user decision.
5. Registry vs filesystem. Every registry row has a matching folder and every folder a matching row, in both the working tree and the vault mirror. Each counter must exceed the highest number actually used — a counter that has fallen behind will hand out a duplicate on the next allocation.
6. Mirror symmetry. For every WP and WA, the vault path matches the working-tree path exactly, acronym and number prefixes included.
7. Task IDs match location. In each WP's tasks.md, every task ID's prefix must equal that WP's own numbers (XX-WW at 2 levels, XX-SS-WW at 3) and its part count must match the project's declared depth. Report mismatches; renumbering is a migration, not a lint fix.
8. Work only in WP/WA. No resources/ or outputs/ folder anywhere except inside a WP or a work area.
9. Produced filenames. Every file you produced inside a WP or work area matches <acr>-<address>-<NNN>-<name>.<ext>, with <acr> and <address> equal to the unit it sits in — a file carrying another unit's address is in the wrong folder. Setup files match su-<NNN>-<name>.md. Report: numbers duplicated within a unit (legitimate only for one document exported in several formats, same name part), a Next output / Next setup counter at or below the highest number in use, leftover date or version strings in a filename, and markdown deliverables missing the header block or the ## Changelog section. Feature documents (<acr>-<address>-f###-<slug>.md) are exempt from the number, the header and the changelog. User uploads are never checked — only files you produced; when authorship is unclear, report nothing.

After any action

• Append summary to vault/log.md.
• Report: fixed automatically vs needs user decision, as two short lists.

Notes

• Never delete pages (root CLAUDE.md hard rule); deprecate with a note instead.
• vault/sources/ is excluded from all checks (read-only).
• The structure check reports, it does not repair. Every fix for a depth or numbering violation moves folders and rewrites IDs, which belongs in a /setup migration file. Correcting a registry typo is the one safe exception.