senpi

⚠️ Experimental. senpi is an opinionated, in-flight fork of badlogic/pi-mono. It powers Dori under the hood and reflects what one specific AI assistant needs from a coding-agent runtime. Use it; don't bet a production pipeline on it.

senpi is a senpai-name pun and a more sane pi with extra batteries included — a TypeScript monorepo that rebrands pi-mono's coding agent as senpi and ships a curated set of builtin extensions and core tweaks on top of upstream.

Upstream: pi-mono by @mariozechner — tools for building AI agents and managing LLM deployments.

Inspired by OMO, built as Dori's coding-agent runtime

senpi was born from two influences:

• Strong influence from OMO (oh-my-openagent). OMO is the heavyweight opencode harness with discipline agents (Sisyphus, Hephaestus, Prometheus), IntentGate, hash-anchored edits, Team Mode, skill-embedded MCPs, Ralph Loop, todo enforcers, and a lot more. senpi reuses many of OMO's signature ideas (intent gate, dynamic prompt, per-model presets, parallel-tool routing, todo continuation) but keeps the surface as light as possible so it can stay close to upstream pi-mono. Think of senpi as a light version of OMO that runs as a single pi CLI binary instead of an opencode plugin.
• senpi is the coding-agent runtime for Dori. Dori is Sisyphus Labs' AI assistant — see the Dori callout in OMO's README for context. senpi is usable standalone, but the design decisions (intent gate phrasing, builtin extension set, prompt presets per model family, branding) are tuned for what Dori needs when it executes code work.

Core source modifications are minimised and tracked in changes.md files alongside every modified subdirectory so upstream merge commits stay reviewable.

Coming from OMO? Recommended extension setup

If you're migrating from OMO (oh-my-openagent), here is the practical map from "what I used in OMO" to "what to install in senpi". A lot of OMO's signature work is already wired into senpi as a builtin (nothing to install); the rest lives in the code-yeongyu/pi-* GitHub repos and is one senpi install away.

senpi is intentionally lighter than OMO — single CLI binary, not an opencode plugin. Some OMO concepts (Discipline Agents, Team Mode, Skills, Hashline, Ralph Loop, /init-deep) have no 1:1 senpi counterpart and are flagged at the bottom of this section. If you need those, keep using OMO.

Already builtin in senpi — nothing to install

Choose extensions for your OMO setup

Senpi builtins, standalone pi-* extensions, and the OMO Senpi plugin overlap. Do not install every standalone package when the capability is already provided by Senpi or the plugin.

For standalone Senpi without the OMO plugin, install only the non-builtin capabilities you need:

senpi install git:github.com/code-yeongyu/pi-lsp-client            # 🛠️  LSP: rename / goto / refs / diagnostics + /lsp inspector
senpi install git:github.com/code-yeongyu/pi-ast-grep              # 🛠️  AST-Grep across 25 languages (auto-downloads sg)
senpi install git:github.com/code-yeongyu/pi-comment-checker       # 💬  Comment Checker — the standalone pi port of OMO's hook

# Optional — only if you used the matching OMO surface:
senpi install git:github.com/code-yeongyu/pi-cua-integration                 # 🖥️  Computer-use bindings (desktop / browser)
senpi install git:github.com/code-yeongyu/pi-anthropic-computer-use          #     Claude-native computer use
senpi install git:github.com/code-yeongyu/pi-anthropic-code-execution        #     Claude-native code execution
senpi install git:github.com/code-yeongyu/pi-google-code-execution           #     Google-native code execution
senpi install git:github.com/code-yeongyu/pi-openai-code-interpreter         #     OpenAI Code Interpreter
senpi install git:github.com/code-yeongyu/pi-anthropic-text-editor           #     Claude-native text editor tool
senpi install git:github.com/code-yeongyu/pi-anthropic-tool-search           #     Claude-native tool search
senpi install git:github.com/code-yeongyu/pi-anthropic-web-fetch             #     Claude-native web fetch
senpi install git:github.com/code-yeongyu/pi-google-google-search            #     Google Search grounding
senpi install git:github.com/code-yeongyu/pi-google-url-context              #     Google URL grounding
senpi install git:github.com/code-yeongyu/pi-openai-api-parallel-tool-calls  #     OpenAI parallel_tool_calls payload support

See Senpi Packages for the full install / update / remove flow.

Allow all permissions (OMO-style)

OMO runs with all tool permissions pre-approved. To replicate that behavior in senpi, add a wildcard allow rule to your global settings:

mkdir -p ~/.senpi/agent
cat > ~/.senpi/agent/settings.json << 'EOF'
{
  "permission": {
    "*": "allow"
  }
}
EOF

This tells the permission system to auto-approve every tool call without prompting. The "*" key matches all permission names, and "allow" grants them unconditionally. You can also set this per-project by placing the same settings.json in `