最近 Pi 生态出了几个值得关注的扩展。pi-discuss-mode 让你和 agent 对话时不用担心误操作；Pi Exa 给 Pi 接上了网页搜索；pi-workflow 用 JSON spec 标准化多 agent 工作流。做一个合集记录。

Pi 扩展小合集

pi-discuss-mode——和 Agent 安全地讨论

让 Pi 进入“仅讨论“模式。agent 可以读代码、回答问题、做建议，但被限制执行任何会修改文件或运行危险命令的操作。比 “plan mode” 更轻——plan mode 强制产出计划，而 discuss mode 让你安全地问“这个代码库是怎么工作的“。

/ discuss # 开启 / discuss # 再次关闭

GitHub：[仍在搜寻]

Pi Exa——网页搜索和深度研究

给 Pi 接上了 Exa 搜索引擎。agent 能搜索网页、读取页面、综合研究。

pi exa search “最新 JEPA 架构进展”

Show HN：https://github.com/junnjiee/pi-exa

pi-workflow——JSON 工作流编排

把子 agent 模式拆成几种 stage 类型（split/orchestrate/build/review/combine），用 JSON spec 描述多 agent 协作。附带 skill 帮助编写工作流。

{ “stages”: [ {“type”: “plan”, “agent”: “planner”}, {“type”: “orchestrate”, “split”: 3}, {“type”: “build”, “parallel”: true}, {“type”: “review”, “fix”: true}, {“type”: “combine”} ] }

GitHub：https://github.com/AgwaB/pi-workflow…

Headroom × Oh My Pi——模型用量可视化

Headroom 的 headroom wrap 命令支持了 omp（Oh My Pi）。可以在本地代理层看到每个模型、每次 transform、每个工具用了多少 token。

GitHub：headroomlabs-ai/headroom feat #1149

社区声音

AI Jason（5.8K 观看）：“我最喜欢的部分是并行 sessions——能让 10-15 个不同的 agent session 同时安全地运行。Breaking down into 11 different agents with orchestrator built around task entity.”

#Pi #扩展 #Agent工具

junnjiee/pi-exa

Source: https://github.com/junnjiee/pi-exa

Pi Exa

Web search, fetching, and deep research for your Pi Agent. Powered by Exa.

No API key needed for web search and fetch. Works out of the box, install the extension and your agent can start using Exa search and fetch.

https://github.com/user-attachments/assets/8bc51126-f212-4ad7-813b-705197a972e8

Why Exa for your Agent

• Free - 1000 requests/month for web search and fetch, via the Exa MCP server
• Semantic search - understands intent, not just keyword searches
• LLM-friendly results - Exa returns clean snippets instead of dumping entire sites that nuke your context window (through Exa Highlights)
• Get what you want - Your agent can make sense of Exa’s search options and filters to get you narrowed results

Install

pi install npm:pi-exa

Optional: Exa API key for the deep search tool. To register your key:

pi /exa-login

Features

MCP

• Use web search and content fetching with no API key required
• Lazy-loaded Exa MCP server that only connects on first tool call
• Cached MCP tool schemas, Pi registers MCP tools during startup without connecting to the MCP server
• Toggle paid Exa MCP usage with /exa-mcp-use-api-key on|off

Advanced Web Search

• Let your agent use every Exa search filter
• Disabled by default to save context (~1200 tokens)
• Enable or disable with /exa-advanced-search on|off

Deep Search

• Give your agent access to Deep Search via the Exa API, with deep-lite, deep, and deep-reasoning modes
• Requires an Exa API key via /exa-login or EXA_API_KEY env var
• Enable or disable with /exa-deep-search on|off

Docs

Commands

Tools

Enabled while pi-exa is enabled:

Toggle to enable/disable while pi-exa is enabled. Preferences persist across sessions:

Bugs and suggestions

Open an issue!