pi-skill-stacks

A pi package that groups skills into named stacks you can toggle on and off. Disabled skills leave the system prompt, /skill: commands, and discovery.

Install

pi install npm:pi-skill-stacks

Use

/stacks opens an overlay. Left pane: stacks with on/off state. Right pane: the selected stack's members. enter on a member shows its markdown.

Pane	Keys
stacks	↑/↓ select · space on/off · → members · a add skills · n new stack · d delete · esc close
members	↑/↓ move · space remove · → view · a add skills · ← back
viewer	↑/↓ scroll (mouse wheel in fullscreen) · ← back

a opens a picker of skills not yet in any stack. Type to filter it, space to mark several, enter to add. To move a skill between stacks, space it out of one and a it into the other.

With no stacks defined, enter (or n) creates the first one and opens the picker right after.

From the command line: /stacks on <stack>, /stacks off <stack>, /stacks list.

How it works

Stacks live in ~/.pi/agent/skill-stacks.json (PI_CODING_AGENT_DIR is honoured). You can edit it by hand:

{
  "stacks": {
    "frontend": ["react", "tailwind", "vite"],
    "writing": ["writing-beats", "writing-fragments"]
  }
}

Skills are discovered like pi does: every SKILL.md under ~/.agents/skills/ and <agentDir>/skills/, named by frontmatter name or the directory name. A project can add stack definitions in <project>/.pi/skill-stacks.json; those can be toggled but not edited from the overlay.

Turning a stack off writes !skills/<dir>/SKILL.md patterns into the skills array of ~/.pi/agent/settings.json, pi's own exclusion mechanism. The package only removes patterns it wrote itself; hand-written entries stay. A skill is excluded only when no enabled stack contains it, and skills in no stack are never touched. pi reloads once when the overlay closes, only if settings.json changed.

Stack names that don't match a discovered skill are flagged missing and not counted.

For other extensions, loadStacksSummary() in src/store.ts returns stack names, on/off state, and counts (totalCount, activeCount, unstackedCount).

Develop

npm install
npm run check
npm test