thrdi 0.0.6rc2

Trace any agentic CLI to a unified local store, queryable from the CLI.

thirdeye

Trace every agent session on your machine — Claude Code, Cursor, Codex, Gemini, Copilot — into one history you and your agents can manage, search, and evaluate.

Install

brew install duncankmckinnon/tap/thirdeye    # macOS / Linux
pipx install thrdi                           # or: uv tool install thrdi

Enable tracing

thirdeye add --claude        # also: --cursor, --codex, --gemini, --copilot

To detach: thirdeye remove --claude.

Read your history

thirdeye list                          # every session, every platform
thirdeye events <id>                   # one session, terse
thirdeye tail <id> -n 5                # last few events
thirdeye event <id> <seq>              # one event, fully expanded
thirdeye search "migration"            # substring across all sessions
thirdeye stats                         # totals

Tag and filter

thirdeye tag <id> <seq> --add bug,review     # tag an event
thirdeye tag <id> --list                     # list tagged events in a session
thirdeye tag <id> <seq> --remove bug         # untag
thirdeye tags                                # global tag inventory
thirdeye search "migration" --tag review --platform claude --since 2026-05-01

Add --json for parseable JSONL, --tree for human-readable, --platform / --cwd / --tag / --since / --until to filter. Session IDs accept any unique prefix. Run thirdeye --help for the full reference.

Per-turn usage

thirdeye captures model name and token counts per turn into an append-only sidecar (usage.jsonl) and a global SQLite index (usage.db). Capture starts automatically on the next agent run after thirdeye add.

thirdeye usage                          # global rollup, sessions by token spend
thirdeye usage <id>                     # per-turn detail for one session
thirdeye usage --top 5 --since 2026-05-01
thirdeye usage <id> --json              # parseable JSONL rows
thirdeye usage reindex                  # rebuild SQLite from sidecars
thirdeye usage errors                   # tail the capture audit log

Filters: --platform / --harness, --model SUBSTR, --since / --until, --top N, --sort total|input|output|ts.

Browse in a browser

For a richer experience than the CLI, install the UI extra and launch:

pip install 'thrdi[ui]'
thirdeye ui

This opens a local browser UI for browsing sessions, visualizing traces as a collapsible tree, tagging events, editing and running evals, and live-tailing in-progress sessions. The server binds loopback only.

See docs/ui.md for full reference.

Evaluations

Grade a recorded session by dispatching one of your installed CLI agents (claude / codex / gemini) as an LLM-as-judge. Eval definitions are named rubrics — directive text shipped with sensible defaults and editable per-user.

thirdeye eval def list                                          # available rubrics
thirdeye eval def show default                                  # see the directive
thirdeye eval def create my-rubric --directive "<text>"         # custom rubric

thirdeye eval run <id> --agent claude                           # foreground
thirdeye eval run <id> --agent gemini --using token-efficiency --background

thirdeye eval show <id>                                         # latest result
thirdeye eval list --since 2026-05-01 --verdict warn            # history
thirdeye eval status                                            # background jobs

Per-turn findings are stored with the event seq they anchor to, and thirdeye events <id> annotates the timeline inline by default (suppress with --no-findings, filter with --eval NAME). The eval invocation itself is a thirdeye-traced session, so every grading run has its own audit trail.

Dispatched agents run in read-only mode (Claude --allowedTools allowlist, Codex --sandbox read-only, Gemini --approval-mode plan). No new Python deps — thirdeye shells out to the agent binaries you already have installed.

Agent skills

Two bundled Claude-Code-format skills:

• use-thirdeye — basic CLI fluency: enable tracing, search sessions, debug tool calls, analyze token usage.
• use-thirdeye-evals — eval workflow: create rubrics, dispatch evaluators, view per-turn findings.

thirdeye skill list                                  # show bundled skill names
thirdeye skill install                               # all skills → .agents/skills/
thirdeye skill install .claude/skills                # custom parent dir
thirdeye skill install --only use-thirdeye-evals     # just one
thirdeye skill install --force                       # replace existing entries

Skills install as symlinks, so upgrading thirdeye (brew upgrade thirdeye or pipx upgrade thrdi) automatically refreshes the skill content in every repo where they're installed.

License

MIT.