Local-first wall-clock profiler

Find what blocks the loop.

Wasted Cycles is a free, MIT-licensed Go CLI by Yossi Eliaz. It reads your local Codex, Claude Code, Cursor, and Grok Build traces, or a repo's GitHub Actions history, and ranks the build, test, CI, and container waits that block agent work, so you can fix the largest machine stall first. Nothing is uploaded.

$ curl -fsSL https://zozo123.github.io/cycles | sh

Checksum-verified binary · temporary directory · no account · no upload · version pinning supported

WASTED CYCLES 7d · demo

1 OVERVIEW 2 BREAKDOWN 3 SESSIONS

AGENT LOOP4h 59m

BLOCKED2h 05m

FLOW58%

HUMAN48m

Model work1h 28m

Build1h 06m

Tests47m

Two inputs. One question.

Where did the machine block progress?

Wasted Cycles measures elapsed time, keeps human wait outside the metric, and gives you a small ranked list instead of a speculative ROI number.

01 / LOCAL TRACES

Profile the agent loop

Read existing Codex, Claude Code, Cursor, and Grok Build traces in place. Compare working, blocked, and excluded time across sessions.

wasted-cycles --days 30

02 / GITHUB ACTIONS

Profile repository latency

Inspect completed workflow runs, queue delay, unsuccessful time, median and p95 latency, and the workflows consuming the most elapsed time.

wasted-cycles github owner/repo --days 30

GitHub Actions demo

Real shape. Anonymous labels.

Values come from a seven-day public sample captured 31 July 2026, scaled ×21 for the demo. Proportions are preserved; repository, commit, and run titles are omitted.

7 days · 21× scaled sample Repository workflow latency

84 / 84 successful

WORKFLOW LATENCY22h 29m

QUEUE DELAY0s

MEDIAN / P9538s / 33m

SUCCESS RATE100%

Build workflow 22h 06m · 42 runs

Policy workflow 23m · 42 runs

Scaled demo only; proportions are preserved. Live reports calculate directly from the repository and window you provide.

Method and limits

Measured time, with its edges visible.

Blocked means machine wait

Builds, tests, CI, containers, packages, sub-agents, and repeated machine work. Human wait is reported separately and excluded.

Latency is not billing

GitHub workflow latency is created_at → updated_at. Overlapping runs count separately; it is not billed runner-minutes.

Idle gaps are bounded

Gaps over two hours start a new session. Shorter gaps cap at 30 minutes and remain visible as inferred time in JSON.

Structured events only

Classification uses event fields and executed commands, not prompt text. Pasted logs and quoted commands are not counted as work.

Resolution is labelled

Codex and Claude expose events. Cursor exposes turns; Grok is coarser. JSON includes confidence and segment details.

Local by default

Trace files are read in place. Prompt text and source code are never stored, rendered, or uploaded.

Codex~/.codex/sessions · event

Claude Code~/.claude/projects · event

Cursor~/.cursor/projects · turn

Grok Build~/.grok/sessions · session