feat(autoskill): propose a skill when the operator repeats a pattern

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

skills/autoskill/SKILL.md

@@ -0,0 +1,30 @@
+---
+name: autoskill
+description: >
+  Detect operator repetition and turn it into a skill. Trigger when the
+  operator gives an instruction, correction, or prompt pattern for roughly
+  the third time in a conversation (or says they keep repeating themselves),
+  and the pattern is general enough to reuse. Portable across projects.
+---
+
+When you notice the operator repeating the same kind of instruction,
+correction, or prompt pattern (about three occurrences, exact wording may
+vary), do the following:
+
+1. Finish the current task first; never interrupt work in progress.
+2. Then propose, in one short paragraph: the repeated pattern you observed,
+   a skill name suggestion, the trigger phrasing, and what the skill would
+   do. Ask whether to create it.
+3. On approval, write the skill:
+   - a conversation shortcut or expansion: add it to the `shortcuts` skill
+     table instead of creating a new skill.
+   - project-specific behavior: create it in the project's own skills
+     directory (e.g. `skills/<name>/SKILL.md` in the repository).
+   - portable behavior: create `skills/<name>/SKILL.md` in the operator's
+     skills repository.
+   Follow the local naming conventions and keep the skill a thin,
+   single-purpose instruction; route to an authoritative doc when one
+   exists instead of duplicating it.
+4. Do not propose a skill for one-off work, secrets, or anything whose
+   repetition is already covered by an existing skill; when an existing
+   skill almost fits, propose extending it instead.