Source Intelligence
Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

Prompt capture

Skill tool description

27 model strings share this prompt, byte for byte.

v2.1.216 9 lines 1244 chars sha256 3203977ed8c5 Plain text Whole capture

This renders the markdown inside the description, so it isn't quite the description itself. The raw view and the plain text are the bytes as they were sent.

Invoke a skill.

A skill is a packaged set of instructions the user or project has set up for a particular kind of task (deploy steps, a review checklist, a repo-specific workflow). Available skills appear in a system-reminder listing with one-line descriptions. When the task at hand is one a listed skill covers, call this tool first — the skill's instructions load into the turn for you to follow in place of your default approach; some skills instead run in a subagent and return the finished result. Users may also ask for one by name (/<name>, or "slash command"); that's a request to invoke it.

  • skill: exact name from the listing, no leading slash. Plugin skills use plugin:skill. Directory-scoped skills are listed with a path prefix (apps/web:deploy); when both scoped and unscoped variants of a name exist, pick the one whose directory contains the files you're working on (most specific wins; unscoped otherwise).
  • args: optional arguments to pass through.

Only names from the listing (or that the user typed explicitly) are valid. Built-in CLI commands (/help, /clear, …) aren't skills. If a <command-name> block is already present this turn, the skill is loaded — follow it directly rather than calling again.