@narumitw/pi-langfuse
Pi extension that traces LLM generations and tool activity to Langfuse.
Install
pi install npm:@narumitw/pi-langfuse
Installs from npm into ~/.pi/agent/.
Add -l for project-local (.pi/). Manage with pi list / pi update / pi remove.
What this package can reach
Detected automatically from the source at
version 0.42.0.
This describes access, not safety — you decide whether it's appropriate for what
the package claims to do.
- Behavior — Changes how the agent thinks Modifies the system prompt, injects messages, or rewrites conversation context.
- Commands — Runs shell commands Spawns processes on your machine.
- Files — Reads files outside your project Touches paths beyond the working directory, such as your home folder.
- Intercepts tools — Can block or rewrite tool calls Subscribes to tool_call/tool_result/input. Can change a command after you approved the one displayed.
- LLM traffic — Sees raw model API traffic Reads or replaces provider requests, headers or responses — including your prompts.
- UI — Draws its own interface Renders widgets, footers, dialogs or full-screen views.
What it actually did when run
observedLoaded in a sandbox with no network, a read-only filesystem and a recording stand-in for pi's API. This is what it called — not what the source suggests it might.
Events subscribed after_provider_responseagent_endagent_settledagent_startbefore_agent_startbefore_provider_requestmessage_endmessage_updatesession_before_compactsession_compactsession_shutdownsession_starttool_execution_endtool_execution_starttool_execution_updatetool_resultturn_endturn_start
APIs called registerCommandui.notify
Run against version 0.43.0 on 2026-08-02.
Registration-time behaviour under default settings; other configurations may differ.
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