Acme demo. You are an engineer. Made-up people, real signatures.

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All sessions

Webhook signature check

Oct 20, 9:17 AM, 157 active minutes in acme-demo/payments-api. Session title: webhook signature check

Fixed$18.11

Shipped 1 change(s), but spent a lot of the session retrying (loop score 5).

What it turned into

  • fix: webhook signature check
    acme-demo/payments-api#113: merged, +570/-133 lines in 12 files. Linked by pr-link (97% confidence). 89% of sampled lines still alive so far.

Cost

Priced from tokens
$18.11
Total tokens
41.6M
Cache reads
40.7M (98%)
Cache writes
565.9K
Output
271.6K
claude-opus-5-5
$18.11, 233 calls

How it went

Your prompts
22
Tool calls
212 (46% read-only)
Tool errors
78, longest streak 8
Commands repeated 3+ times
5
Most edits to one file
26
Test runs
21
Files edited
12, +570/-133
Subagents
0
Loop score
5 (3 or more counts as looping)

Private AI record

Engine
Offline rules

The private AI sees trimmed prompts, the AI's last answers, a tool-use summary, the GitHub outcome and the cost. Only the category, title, difficulty, a generic reason and these hashes are kept. The prompts are never written anywhere.