4 tasks. July 21, 2026 closed at 15.3x weighted leverage across 114.5 human-equivalent hours in 450 minutes of wall-clock time. Supervisory leverage came in at 327.1x.
That is 2.9 weeks of human-equivalent throughput in 7.5 hours. The ceiling was 20.4x; the floor was 6.0x. 3 of the 4 entries came from a single project.
Task Log
| # | Task | Human Est. | Claude | Sup. | Factor |
|---|---|---|---|---|---|
| 1 | Convert Colibri work-history docs (README/TIMELINE/AI_PRODUCTIVITY) into three cross-linked HTML artifacts with SVG charts plus bright template redesign | 8.5h | 25m | 3m | 20.4x |
| 2 | CHEM1B post-demo directive: 31-defect fix wave across 9 repos (engine session-durability+chat-scoping+DTO-flags, api 6 proxies+CORS-safe-500, web 16 flow fixes+FAQ/[unreleased product]/demo chrome, content… | 90.0h | 300m | 10m | 18.0x |
| 3 | E2E activity coverage: 10 new Playwright specs (glossary match_board/cloze_sprint + 8 uncovered activities) driven to completion + activity-matrix rebuilt as anti-regression meta-test; surfaced… | 9.0h | 55m | 4m | 9.8x |
| 4 | Deployment | 7.0h | 70m | 4m | 6.0x |
Aggregate Statistics
| Metric | Value |
|---|---|
| Total tasks | 4 |
| Total human-equivalent hours | 114.5 |
| Total Claude minutes | 450 |
| Total supervisory minutes | 21 |
| Total tokens | 1,710,000 |
| Weighted average leverage factor | 15.3x |
| Weighted average supervisory leverage factor | 327.1x |
| Human-equivalent weeks | 2.9 |
Analysis
The highest factor of the day came in at 20.4x and the lowest at 6.0x, a spread of 3.4 times between the two. That is a narrow range, which tends to happen when a day stays inside one kind of work.
The largest single entry accounted for 8.5 of the 114.5 human-equivalent hours, or 7 percent of the day. No single task dominated the total, so the weighted average is representative.
Supervisory time was 21 minutes against 450 minutes of execution, a ratio of about 1 to 21. Supervisory leverage of 327.1x is the figure I find most honest, because it measures the hours I actually spent rather than the hours a machine spent on my behalf.
Every figure here is recorded at the time the work is done rather than reconstructed afterwards. The human estimate is my own judgement and carries the uncertainty that implies; the minutes and tokens are measured. The full dataset, including this day, is available for download.