166 lines
6.6 KiB
Markdown
166 lines
6.6 KiB
Markdown
---
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created: 2026-05-16
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modified: 2026-05-16
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type: note
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tags:
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- ai
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- dev-ops
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aliases: []
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---
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# Pi Agent Extensions & Skills
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## Source Repositories
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| Source | Location |
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|---|---|
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| Gitea (package) | `git:https://gitea.lab.audasmedia.com.au/sam/pi-config` |
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| Local filesystem | `~/.agents/` |
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| Project settings | `sys_config/.pi/settings.json`, `ai_setup/.pi/settings.json` |
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---
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## Extensions
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| Extension | Source | Purpose |
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|---|---|---|
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| **pi-config** | `~/.agents` | `/config-add`, `/config-remove`, `/config-show`, `/config-setup` — manage which extensions/skills are active in a project |
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| **tavily-search** | Gitea | `tavily_search` — web search via Tavily API (AI-optimized) |
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| **web-fetch** | `~/.agents` | `web_fetch` — fetch any URL and return clean markdown (HTML, PDF, JS-rendered with Jina fallback) |
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| **ask-user-question** | `~/.agents` | `ask_user_question` — LLM presents structured multiple-choice / text questions with keyboard UI |
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| **video-extract** | `~/.agents` | `video_extract` — extract frames from YouTube/local video + full Gemini analysis (requires ffmpeg + yt-dlp + GEMINI_API_KEY) |
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| **filechanges** | `~/.agents` | `/filechanges`, `/filechanges-accept`, `/filechanges-decline` — tracks every file LLM edits/writes, diff review, revert |
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| **pi-subagents** (tintinweb v0.7.1) | `~/.agents` | Spawn child Pi agents for delegated tasks (scout, researcher, worker) |
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| **pi-prompt-template-model** | npm (global) | Model-switching prompt templates with frontmatter. See [[#Prompt Templates]] section below |
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| **pi-graphify** | `~/.agents` | Knowledge graph tools: build, query, path tracing, explain, watch, add, update |
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| **plannotator** | `~/.agents` | Interactive plan review with browser UI, annotations, code review |
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| **caveman** | `~/.agents` | Ultra-compressed communication mode |
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---
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## Skills
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| Skill | Purpose |
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|---|---|
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| **nixos-workflow** | STRICT workflow for managing Pi assets via Gitea on NixOS |
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| **system-architect** | Multi-machine NixOS infrastructure (Snapcast, MQTT, Docker, Nvim) |
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| **obsidian-cli** | Interact with Obsidian vault (notes, search, plugin dev, theme dev) |
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| **graphify** | Full-pipeline knowledge graph orchestration |
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| **caveman** | Caveman communication mode |
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| **openspec-propose** | Propose new changes with design docs, specs, tasks |
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| **openspec-apply-change** | Implement tasks from an OpenSpec change |
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| **openspec-archive-change** | Archive completed changes |
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| **openspec-explore** | Explore ideas and clarify requirements |
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---
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## Prompt Templates
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Prompt templates are `.md` files in `~/.pi/agent/prompts/` with YAML frontmatter. Each defines a slash command that auto-switches model, thinking level, and injects skills — then restores your previous model when done.
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### Installed Templates
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| Command | Model | Thinking | Use |
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|---|---|---|---|
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| `/quick` | deepseek-v4-flash | — | Fast, cheap tasks |
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| `/deep` | kimi-k2.5 | high | Deep analysis, architecture |
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| `/review` | kimi-k2.5 | medium | Code review |
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| `/nix-check` | qwen-2.5 | low | Run checks + analyze |
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| `/research` | deepseek-v4-flash | — | Web research, synthesize |
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### How to use
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```
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/quick what's the weather?
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/deep design the architecture for this feature
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/review review the changes in this file
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/nix-check analyze the nix flake check output
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/research find alternatives to this approach
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```
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### Template format
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```yaml
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---
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description: Quick task — fast model, minimal thinking
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model: openrouter/deepseek-v4-flash
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restore: true
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---
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$@
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```
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Key frontmatter fields:
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- **`model`** — provider/model-id or comma-separated fallback list
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- **`thinking`** — off, minimal, low, medium, high, xhigh
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- **`restore`** — (default true) restore previous model when done
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- **`skill`** — auto-inject a skill
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- **`deterministic`** — run a command/script before the LLM turn (e.g. `nix eval .#checks`)
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### Adding new templates
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Create a new `.md` file in `~/.pi/agent/prompts/` with frontmatter. The filename becomes the command name. Restart Pi or run any extension command to pick them up.
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---
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## Configuration Files
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### Global (`~/.pi/agent/settings.json`)
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- Nix store symlink — managed via `/etc/nixos/home/sam/home.nix`
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- Contains: providers (opencode-go, openrouter, google), packages (pi-memctx, pi-prompt-template-model, Gitea)
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- **Read-only** — cannot be modified by `pi install` or `/config-add`
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### Project (`<project-dir>/.pi/settings.json`)
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- Overrides global settings (arrays replace, not merge)
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- Contains: `~/.agents` package (extensions + skills), Gitea package (tavily-search)
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- Modified via `/config-add` / `/config-remove` commands
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### Per-folder Memory (via pi-memctx)
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- Memory stored in `<chat-folder>/.pi/memory-vault/packs/`
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- Workspace map at `~/.pi/agent/memory-vault/00-system/workspace-map.json`
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- Each chat folder has isolated memory (prevents sibling directory contamination)
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---
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## Useful Commands
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| Command | What it does |
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|---|---|
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| `/quick <task>` | Fast model for quick tasks |
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| `/deep <task>` | Powerful model with extended thinking |
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| `/review <path>` | Thorough code review |
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| `/nix-check <task>` | Nix-specific analysis |
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| `/research <topic>` | Web research and synthesis |
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| `/config-setup` | One-shot: creates `.pi/`, `settings.json`, memory vault in current folder |
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| `/config-add ext <name>` | Activate an extension from `~/.agents` |
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| `/config-add skill <name>` | Activate a skill from `~/.agents` |
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| `/config-show` | Show active extensions and skills |
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| `/memctx-init` | Scan folder, build initial memory pack |
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| `/memctx-status` | Show memory status |
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| `/memctx-refresh` | Re-scan and enrich memory |
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| `/filechanges` | Review changed files, diffs, accept/decline |
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| `/filechanges-accept` | Accept all changes |
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| `/filechanges-decline` | Revert all changes |
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---
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## Skipped / Bookmarked
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| Extension/Skill | Reason |
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| **web-search** (amosblomqvist) | ❌ Redundant — Tavily does this |
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| **subagents** (amosblomqvist) | ❌ Redundant — pi-subagents already installed |
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| **bash-guard** (amosblomqvist) | ❌ Too aggressive — would interrupt flow |
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| **google-image-search** (amosblomqvist) | ❌ Would need Google Search API + CSE setup |
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| **pdf-reader** (amosblomqvist) | ⏳ Bookmarked — Python + pymupdf setup needed |
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| **notify** (mitsuhiko) | ⏳ Minor QoL — desktop notifications on task complete |
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---
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## Tasks
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- [ ] Rebuild NixOS to activate Google provider + ffmpeg/yt-dlp + pi-prompt-template-model
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- [ ] Run `/reload` in Pi to activate filechanges and new templates
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- [ ] Add more prompt templates to `~/.pi/agent/prompts/` as needed
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- [ ] Verify video-extract works with Gemini
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- [ ] Clean up workspace-map.json entries for any stale memory packs
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