docs: replace restated upstream facts with pointers in multi-agent, playbooks, playwright, powershell-format and 6 more #12698

Refs: #7292

Outcome

15 passages in 11 files state a fact an external source owns. Rewrite each as a pointer to the live upstream section, or remove it, so the next upstream change cannot leave a stale copy here. Plugins: multi-agent, playbooks, playwright, powershell-format, ruff-format, biome-format, code-metrics, desktop-notification, eol-normalizer, mutation-testing.

Done when

• Every row below is fixed: the restated value is deleted, the local decision stays in this repository's own words, and the pointer goes to the exact upstream section with an as-of date and a recheck trigger, per .claude/rules/skill-bodies-state-current-rules.md. A record beside a restated value does not fix it. A row marked Remove has no local dependency on the fact.
• The PR passes check-stamps.sh --trigger-less (plugins/attribution/skills/audit/scripts/check-stamps.sh) on the files it touches.
• Each touched plugin has a changelog fragment.

Rows

multi-agent

• plugins/multi-agent/README.md:86-88 (r346). Pointer: https://code.claude.com/docs/en/hooks#pretooluse-decision-control Drop the description of what the hook returns for non-matching commands and how permission rules then apply; keep the local scope of the hook and point at the section.
• plugins/multi-agent/README.md:90-93,137-142 (r347). Pointer: https://code.claude.com/docs/en/hooks#block-the-action-when-a-hook-fails Drop the version threshold and the deny-on-failure behavior description; keep the decision to set onFailure block and the Node.js prerequisite, and point at the section.

playbooks

• plugins/playbooks/reference/prompt-caching.md:159-163 (r375). Pointer: https://code.claude.com/docs/en/skills#work-on-claude-api-projects (confirm the section) Drop the description of the cost-optimize subcommand's behavior; keep the decision to wrap or point to the bundled claude-api skill rather than rebuild the audit.
• plugins/playbooks/skills/repo-sweep/reference/next.md:120-122 (r376). Pointer: https://code.claude.com/docs/en/skills#available-string-substitutions Drop the quoted 'Base directory for this skill' line the Skill tool prints; keep that --dir takes the loaded skill's directory and point at the documented skill-directory substitution.

playwright

• plugins/playwright/skills/demo-video/SKILL.md:75-77 (r381). Pointer: https://chromedevtools.github.io/devtools-protocol/tot/Page/#method-startScreencast (confirm the section) Drop the claim about screencast pixel size; keep the decision to record from device-pixel screenshots and the measured rate printed by record.mjs, and point at the startScreencast method.
• plugins/playwright/skills/demo-video/SKILL.md:99-101 (r382). Pointer: https://cli.github.com/manual/gh_pr_comment#options Drop the description of what --attach requires or does; keep the routing (local attach versus CI artifact plus comment) and point at the gh pr comment options.

powershell-format

• plugins/powershell-format/README.md:29-35 (r394). Pointer: https://learn.microsoft.com/powershell/utility-modules/psscriptanalyzer/using-scriptanalyzer#settings-support-in-scriptanalyzer Drop the claim that PSScriptAnalyzer does not auto-discover settings; keep this plugin's decision to run only where a settings file governs and leave other repos untouched, and point at the section.
• plugins/powershell-format/README.md:44-49 (r395). Pointer: https://learn.microsoft.com/powershell/utility-modules/psscriptanalyzer/using-scriptanalyzer#custom-rules Drop the description of CustomRulePath loading and running rule modules; keep the decision to treat the settings file as executed-adjacent configuration and keep the link to custom rules.

ruff-format

• plugins/ruff-format/README.md:24-34 (r422). Pointer: https://docs.astral.sh/ruff/configuration/#config-file-discovery Drop the description of Ruff's discovery rules and how it treats pyproject.toml without [tool.ruff]; keep the opt-in decision and the known matcher limitation, pointing at the section.
• plugins/ruff-format/README.md:37-40 (r424). Pointer: https://docs.astral.sh/ruff/settings/#lint_unfixable (confirm the section) Drop the statement of how --unfixable relates to the config's own unfixable list; keep the decision to pass F401 protection in the batch row only, pointing at the setting.

biome-format

• plugins/biome-format/README.md:4-6,39-40 (r030). Pointer: https://biomejs.dev/reference/cli/#--write---fix Drop the description of what --write applies and the never-unsafe claim; keep the decision to run biome check --write on the listed extensions and point at the flag section.

code-metrics

• plugins/code-metrics/skills/principles/SKILL.md:132-133 (r045). Pointer: https://www.omg.org/spec/ASCQM/#formal-versions Drop the 'OMG's current release' version claim; keep citing ISO/IEC 5055 and 25023 by clause and version, and point at the ASCQM formal versions.

desktop-notification

• plugins/desktop-notification/README.md:40 (r095). Pointer: https://man.archlinux.org/man/notify-send.1.en (confirm the section) Drop the distro package names; keep that Linux needs notify-send and that os_toast is a no-op without it, and point at the notify-send manual page.

eol-normalizer

• plugins/eol-normalizer/README.md:21-25 (r159). Pointer: https://git-scm.com/docs/gitattributes#text Drop the per-attribute semantics and the NUL-scan window figure; keep the decision that the hook mirrors gitattributes and never rewrites binary files, and point at the section.

mutation-testing

• plugins/mutation-testing/skills/audit/SKILL.md:215-218 (r348). Pointer: https://stryker-mutator.io/docs/stryker-js/configuration/#inplace-boolean Drop the claim of which tools write in tree (inPlace, mutmut major version); keep the instruction to resolve the regime from project config and the tooling.md table, and point at the section.

Notes

Lines are as of 3bd42cabfe (https://github.com/melodic-software/claude-code-plugins/blob/3bd42cabfe6bdef37a05778d396869af0381bb51); locate each passage by its text if main has moved. Each rNNN is that row's number in the order of #7292's "Findings by plugin". Every row was upheld by three blind judges and survived a refutation pass, run report-only for #12072. Pointers are candidates: fetch each before writing it, and confirm the section still documents the fact.

Parent: #7292