Add plan-queue and run-queue skills

.claude/skills/plan-queue/SKILL.md

@@ -0,0 +1,71 @@
+---
+name: plan-queue
+description: Author detailed, weak-model-executable plan files into the current repo's plans/ queue (plans/queue|active|done|failed + INDEX.md). The strong model does ALL exploration and thinking up front so a cheap executor can later apply the plan with zero codebase discovery. Use when the user says "/plan-queue <task>", "queue a plan for X", "add X to the plan queue", "plan this for the weak model". Companion skill: run-queue executes the queue. Manually-triggered only.
+---
+
+# plan-queue
+
+Turn a task description into a **self-contained plan file** in the repo's
+`plans/queue/`, detailed enough that a weak/cheap model can execute it without
+exploring the codebase. Multiple tasks in one invocation → one plan file each.
+
+## Layout (create on first use in a repo)
+
+```
+plans/
+  INDEX.md      # ordered table of all plans
+  queue/        # not started
+  active/       # currently executing (max 1)
+  done/
+  failed/
+```
+
+`INDEX.md` starts as:
+
+```markdown
+# Plan Queue Index
+
+| Seq | ID | Title | Status | Commit | Notes |
+|-----|----|-------|--------|--------|-------|
+```
+
+## Procedure
+
+1. **Scaffold**: if `plans/INDEX.md` doesn't exist, create the layout above
+   (`.gitkeep` in the four dirs so git tracks them).
+2. **Explore deeply** (strong-model work): read every file the change touches,
+   find existing utilities to reuse, note exact paths, line anchors, and
+   signatures. The goal: the executor must need **zero** exploration.
+3. **Name the plan**: next `NNN` = highest seq across all four dirs + 1
+   (zero-padded 3 digits). `HASH` = first 6 chars of
+   `sha1(title + timestamp)`. Filename: `NNN-<kebab-slug>-<HASH>.md` in
+   `plans/queue/`.
+4. **Write the plan** following `plan-template.md` in this skill directory.
+   Every section is mandatory. Be near-diff-level specific in Steps for
+   anything non-trivial; paste real code snippets into Context.
+5. **Index**: append a row to `INDEX.md` (`Status: queued`, Commit blank).
+6. **Commit** the new plan file(s) + INDEX.md: `plan: add NNN-<slug>`.
+   Do NOT push. Never add AI attribution to the commit.
+
+## Rules for plan quality (this is the whole point)
+
+- **Front-load context.** Paste the actual current code of the region being
+  changed into the plan. The executor should never have to grep.
+- **Steps are mechanical.** "Edit `src/auth.ts:42`: change X to Y" — not
+  "improve the auth flow".
+- **Guardrails.** Always fill "Out of scope / do NOT touch" — weak models
+  drift without it.
+- **Verification is copy-pasteable.** Exact commands + expected output.
+- **Independence.** Each plan must leave the repo working (buildable/tests
+  green) on its own, since it gets its own commit. If a task can't, split it
+  differently or use `depends_on`.
+- `depends_on:` in frontmatter lists plan IDs (the NNN-slug-hash basename)
+  that must be in `done/` first. Use it so many plans can be queued without
+  conflict.
+
+## Conflict avoidance when queueing many plans
+
+When authoring several plans in one batch, keep their file footprints
+disjoint where possible; where they must overlap, chain them with
+`depends_on` and write the later plan against the code **as it will be after
+the earlier plan** (say so explicitly in its Context section).