docs(coding-agent): update README intro, add packages/prompt-templates/themes docs

- Rewrote README intro to emphasize extensibility and pi packages - Added Pi Packages section to README - Created docs/packages.md covering install, sources, manifest, filtering - Created docs/prompt-templates.md covering format and arguments - Created docs/themes.md with overview linking to theme.md
2026-04-19 04:04:58 +00:00 · 2026-01-25 20:33:19 +01:00 · 2026-01-25 20:33:19 +01:00 · 94952bd6c0
commit 94952bd6c0
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+> pi can help you create pi packages. Ask it to bundle your extensions, skills, prompt templates, or themes.
+
+# Pi Packages
+
+Pi packages bundle extensions, skills, prompt templates, and themes so you can share them through npm or git. A package can declare resources in `package.json` under the `pi` key, or use conventional directories.
+
+## Table of Contents
+
+- [Install and Manage](#install-and-manage)
+- [Package Sources](#package-sources)
+- [Creating a Pi Package](#creating-a-pi-package)
+- [Package Structure](#package-structure)
+- [Package Filtering](#package-filtering)
+- [Enable and Disable Resources](#enable-and-disable-resources)
+- [Scope and Deduplication](#scope-and-deduplication)
+
+## Install and Manage
+
+```bash
+pi install npm:@foo/bar@1.0.0
+pi install git:github.com/user/repo@v1
+pi install https://github.com/user/repo  # raw URLs work too
+
+pi remove npm:@foo/bar
+pi list    # show installed packages from settings
+pi update  # update all non-pinned packages
+```
+
+By default, `install` and `remove` write to global settings (`~/.pi/agent/settings.json`). Use `-l` to write to project settings (`.pi/settings.json`) instead. Project settings can be shared with your team, and pi installs any missing packages automatically on startup.
+
+To try a package without installing it, use `--extension` or `-e`. This installs to a temporary directory for the current run only:
+
+```bash
+pi -e npm:@foo/bar
+pi -e git:github.com/user/repo
+```
+
+## Package Sources
+
+Pi accepts three source types in settings and `pi install`.
+
+### npm
+
+```
+npm:@scope/pkg@1.2.3
+npm:pkg
+```
+
+- Versioned specs are pinned and skipped by `pi update`.
+- Global installs use `npm install -g`.
+- Project installs go under `.pi/npm/`.
+
+### git
+
+```
+git:github.com/user/repo@v1
+https://github.com/user/repo@v1
+```
+
+- Raw `https://` URLs work without the `git:` prefix.
+- Refs pin the package and skip `pi update`.
+- Cloned to `~/.pi/agent/git/<host>/<path>` (global) or `.pi/git/<host>/<path>` (project).
+- Runs `npm install` after clone or pull if `package.json` exists.
+
+### Local Paths
+
+```
+/absolute/path/to/package
+./relative/path/to/package
+```
+
+Local paths work in settings but not with `pi install`. If the path is a file, it loads as a single extension. If it is a directory, pi loads resources using package rules.
+
+## Creating a Pi Package
+
+Add a `pi` manifest to `package.json` or use conventional directories. Include the `pi-package` keyword for discoverability.
+
+```json
+{
+  "name": "my-package",
+  "keywords": ["pi-package"],
+  "pi": {
+    "extensions": ["./extensions"],
+    "skills": ["./skills"],
+    "prompts": ["./prompts"],
+    "themes": ["./themes"]
+  }
+}
+```
+
+Paths are relative to the package root. Arrays support glob patterns and `!exclusions`.
+
+## Package Structure
+
+### Convention Directories
+
+If no `pi` manifest is present, pi auto-discovers resources from these directories:
+
+- `extensions/` loads `.ts` and `.js` files
+- `skills/` recursively finds `SKILL.md` folders and loads top-level `.md` files as skills
+- `prompts/` loads `.md` files
+- `themes/` loads `.json` files
+
+### Bundling Other Pi Packages
+
+Bundle other pi packages by adding them as dependencies and listing them in `bundledDependencies`. Reference their resources via `node_modules/` paths.
+
+```json
+{
+  "dependencies": {
+    "shitty-extensions": "^1.0.1"
+  },
+  "bundledDependencies": ["shitty-extensions"],
+  "pi": {
+    "extensions": ["extensions", "node_modules/shitty-extensions/extensions"],
+    "skills": ["skills", "node_modules/shitty-extensions/skills"]
+  }
+}
+```
+
+`bundledDependencies` embeds the package in the published tarball, keeping paths stable. See `pi-package-test` for a working example.
+
+## Package Filtering
+
+Filter what a package loads using the object form in settings:
+
+```json
+{
+  "packages": [
+    "npm:simple-pkg",
+    {
+      "source": "npm:my-package",
+      "extensions": ["extensions/*.ts", "!extensions/legacy.ts"],
+      "skills": [],
+      "prompts": ["prompts/review.md"],
+      "themes": ["+themes/legacy.json"]
+    }
+  ]
+}
+```
+
+- Omit a key to load all of that type.
+- Use `[]` to load none of that type.
+- `!pattern` excludes matches.
+- `+pattern` force-includes, even if excluded by manifest.
+- Filters layer on top of the manifest. They narrow down what is already allowed.
+
+## Enable and Disable Resources
+
+Use `pi config` to enable or disable extensions, skills, prompt templates, and themes from installed packages and local directories. Works for both global (`~/.pi/agent`) and project (`.pi/`) scopes.
+
+## Scope and Deduplication
+
+Packages can appear in both global and project settings. If the same package appears in both, the project entry wins. Identity is determined by:
+
+- npm: package name
+- git: repository URL without ref
+- local: resolved absolute path