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Write an approved site skill so it survives small UI changes and fails loudly when it does not — handles, assertions, provenance.
デフォルトでは、最初にソースを確認する Prompt が選択されています。直接コマンドに切り替えるか、ローカルコピーをダウンロードすることもできます。
インストールを決める前に、SKILL.md と SkillsMP に表示されている付属ファイルをお読みください。
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
直接コマンドでは確認用 Prompt が省略されます。実行前にソースを確認してください。
npx skills add https://github.com/danielrosehill/Claude-Site-Skill-Builder-Plugin --skill author-durable-skillコマンドは1行のまま表示されます。コピー前に横へスクロールして全体を確認してください。
ローカルで確認しますか？SkillsMP が現在取得できるファイルをダウンロードできます。
SKILL.md を表示中
| name | author-durable-skill |
| description | Write an approved site skill so it survives small UI changes and fails loudly when it does not — handles, assertions, provenance. |
Writes one approved skill into the target plugin. Read
references/durability-doctrine.md first — this skill is its application.
An approved line from notes/skill-roster.md, the observation note it came from, and
the profile.
Name it for the question it answers, in the site's own vocabulary. Frontmatter
description ≤140 characters, trigger-rich: the nouns and verbs the user will
actually say.
State the route and the session assumption in the body: which browser route, whether a signed-in session is required, what the skill does when it is not there.
Write the identity assertion first. Before extracting anything, confirm the page is the one asked for — canonical URL, title, echoed identifier — and classify the body (real page, challenge, login wall, empty shell). Never infer success from a status code.
Reach the data by the highest rung available, and write the instruction as a description a person could follow. Put selectors in the profile as dated hints, never inline as the definition of the target.
Never write a coordinate. Interactions are expressed as "find the element whose accessible name is X, then act on it" — resolved at run time. A pixel position, an offset from a screenshot, or an index into a list that can reorder is a defect, not a shortcut.
Give it a fallback ladder — one durable handle, then the next, and an explicit give-up. Two ways in beats one clever selector.
Define the breakage signature. What the skill says when the site has moved:
CHANGED: <what> not found at <where>. It must never return a partial result as if
it were complete, and any script must exit non-zero.
State the limits. What the skill does not cover, what is not on the page, whether the values are account-specific.
Add the provenance block:
## Provenance
Observed on <YYYY-MM-DD> from <note>. Handles: rung <n>. Fragile: <any rung 6–7>.
Re-verify with `drift-probe`.
Run it once against the live site and confirm it returns what the observation note says it should. An unrun skill is a draft.
Send the draft to the skill-durability-auditor agent and fix what it flags
before committing.
Batches: author related skills together so they share one profile read and one vocabulary, but run and audit each individually.