🔭 pi-observability

A pi extension that replaces the default footer with a live observability bar, provides a full dashboard command, and prints a TPS summary after each agent run.

Features

• Live footer bar showing:

  • Session input/output tokens & estimated cost
  • Live TPS (tokens per second) during streaming
  • Session runtime
  • Current model, thinking level, fast mode & git branch
  • Git diff stats (added/removed lines)
  • Context usage (current / max)
  • Thinking level colors match pi's input field — off/low/medium/high use the same theme colors as the editor border
  • Rainbow mode — xhigh and max thinking levels render the model indicator in cycling rainbow colors

• /obs command — Full-screen TUI dashboard with per-turn breakdowns and last 10 session history. Renders through pi's native TUI (no console spam), with theme-aware borders and dynamic terminal width.

• End-of-run TPS notification — Prints the legacy TPS summary after each agent run: output TPS, input/output tokens, cache read/write tokens, total tokens, and elapsed time.

• /obs-toggle command — Toggle the live footer on/off

Preview

Screed recording

GitHub does not render inline MP4 players in README.md, so here's a short animated preview. Click it to open the full recording.

Open the full screed recording (MP4)

Footer

Compact single-line layout that falls back to two lines when the terminal is narrow:

gpt-5.5:high ▸ ⏱ 12:34 ▸ 📁 my-app ▸  main +42 -7 ▸ ctx 4.2k/200k ▸ ↑1.2k ↓3.4k ▸ ⚡45.2 ▸ $0.0042

With xhigh or max thinking, the model name renders in rainbow:

gpt-5.5:xhigh ▸ ⏱ 12:34 ▸ 📁 my-app ▸ ↑1.2k ↓3.4k ▸ ⚡45.2 ▸ $0.0042

Git diff in the status bar

Dashboard (/obs)

┌──────────────────────────────────────────┐
│ Agent Observability Dashboard            │
├──────────────────────────────────────────┤
│ Runtime: 12:34    Dir: ~/projects/my-app │
│ Branch: main    Model: claude-sonnet-4   │
├──────────────────────────────────────────┤
│ Tokens: ↑1.2k ↓3.4k                      │
│ Cost: $0.004200                          │
└──────────────────────────────────────────┘

  TURNS  (2)
  #   Input   Output   Time   TPS    Cost    Model
  ─────────────────────────────────────────────────
  1   ↑450    ↓1200    0:45   26.7   $0.00   claude-sonnet-4
  2   ↑320    ↓900     0:32   28.1   $0.00   claude-sonnet-4

  LAST 10 SESSIONS
  When                Duration   Turns   Input   Output   Cost
  ───────────────────────────────────────────────────────────
  Apr 18, 04:19 PM    9:05       10      ↑110k   ↓9.9k    $0.00

Install

Via npm

pi install npm:pi-observability

Via git

pi install git:github.com/imran-vz/pi-observability

Manual

Copy the entire extensions/ directory to ~/.pi/agent/extensions/ (or .pi/extensions/ for project-local):

cp -r extensions/* ~/.pi/agent/extensions/

Note: This extension is split into multiple files (observability.ts + lib/). Copying only the main file will break imports.

Commands

Command	Description
/obs	Open full observability dashboard in TUI overlay
/obs-toggle	Toggle the observability footer on/off
/obs-toggle-path	Toggle between folder name and full path in footer

Migration from TPS

The standalone TPS extension is no longer required. pi-observability now includes its end-of-run TPS notification, so remove ~/.pi/agent/extensions/tps.ts if it is installed to avoid duplicate notifications.

Requirements

• pi coding agent
• Git (for branch & diff stats)

License

MIT