SuPi

Super Pi

The opinionated way to extend PI.

SuPi is an opinionated extension repo for PI with LSP, Skills, marketplace compatibility, and personal best practices built in.

• SuPi is my curated extension stack for PI.
• SuPi makes PI extensible, interoperable, and sane by default.

Built for the pi coding agent.

Extensions

Extension	Description
aliases	Registers /exit to quit pi, /e as a shorthand alias, and /clear to start a new session (alias for /new)
bash-timeout	Injects a default timeout on every bash tool call when the LLM omits one. Configurable via PI_BASH_DEFAULT_TIMEOUT (seconds, default 120).
skill-shortcut	Type $skill-name as a shorthand for /skill:skill-name. Autocomplete triggers on $.
lsp	Adds Language Server Protocol support for hover, definitions, references, symbols, rename, code actions, and diagnostics. It appends inline diagnostics after write/edit, advertises semantic-first tool guidance, and injects concise pre-turn LSP context based on relevant active coverage or outstanding diagnostics.

Install

pi install npm:@mrclrchtr/supi
# or from git
pi install git:github.com/mrclrchtr/SuPi
# or from a local checkout
pi install /path/to/SuPi

When installed from a local path, pi loads the working tree directly; after edits, use /reload or restart pi to pick up extension changes.

LSP extension

The lsp extension is meant to make pi more semantic in supported languages:

• exposes a single lsp tool with actions for hover, definition, references, diagnostics, symbols, rename, and code actions
• appends LSP diagnostics after write/edit
• adds semantic-first promptSnippet / promptGuidelines so the agent prefers lsp for code navigation and diagnostics
• injects concise pre-turn context in before_agent_start, favoring relevant outstanding diagnostics first and otherwise summarizing relevant active LSP coverage
• tracks prompt-mentioned and recently touched files to keep injected guidance focused
• provides /lsp-status for server and diagnostic visibility

Configuration:

• PI_LSP_DISABLED=1 — disable the extension
• PI_LSP_SERVERS=rust-analyzer,pyright — allow-list servers
• PI_LSP_SEVERITY=1|2|3|4 — inline diagnostic threshold
• .pi-lsp.json in the project root — override/add/disable server definitions

Development

mise install
pnpm install
mise run hooks
pnpm typecheck
pnpm biome
pnpm biome:fix
pnpm biome:ci
pnpm biome:ai
pnpm test
pnpm pack:check
pnpm verify
hk run check # local pre-push checks (full pnpm verify)
hk run fix   # local pre-commit autofixes

Biome is configured in biome.jsonc with formatting, import organization, recommended lint rules, and stricter project/types/test plus aggressive complexity and nursery rules.

Publishing

Pi package docs require a pi manifest (already present) and recommend the pi-package keyword for discoverability. This package publishes the TypeScript source directly — pi loads extensions without a build step.

GitHub Actions handles verification and releases:

• CI runs typecheck, Biome, Vitest, and npm pack --dry-run
• Conventional Commits lints PR titles and commit messages
• Release runs on pushes to main, uses semantic-release to determine the next version from Conventional Commits, publishes to npm, tags the release, and creates GitHub release notes

One-time setup

• Ensure the publishing account owns the @mrclrchtr npm scope
• Add an npm automation token as the NPM_TOKEN GitHub repository secret
• Use Conventional Commits on merges to main so semantic-release can compute versions (feat: = minor, fix: = patch, ! / BREAKING CHANGE: = major)
• Be aware that semantic-release starts first stable releases at 1.0.0

Release flow

pnpm verify
git push origin main

semantic-release handles version calculation, tagging, npm publishing, and GitHub release notes automatically. You can smoke-test the configuration locally with:

pnpm release -- --dry-run --no-ci

Note: local dry-runs still need git access to the GitHub remote in order to verify tagging permissions.