≈451 tokens on demand. Your agent reads this file only when SKILL.md points to it.
AutoBrowse Reference
evaluate.mjs flags
node ${CLAUDE_SKILL_DIR}/scripts/evaluate.mjs --task <name> [options]
| Flag |
Default |
Description |
--task <name> |
required |
Task name — matches tasks/<name>/ directory |
--env local|remote |
local |
Browser environment |
--model <model> |
claude-sonnet-4-6 |
Claude model for the inner agent |
--run-number N |
auto-increment |
Force a specific run number |
Environment variables
| Variable |
Required |
Description |
ANTHROPIC_API_KEY |
Yes |
Claude API key |
BROWSERBASE_API_KEY |
Remote only |
Browserbase API key |
BROWSERBASE_PROJECT_ID |
No |
Optional Browserbase project override |
Trace artifacts
Each run writes to traces/<task>/run-NNN/:
| File |
Description |
summary.md |
Duration, cost, turn-by-turn decision log, final output |
trace.json |
Full tool call log — every command and response |
messages.json |
Raw Anthropic API message history |
screenshots/ |
Visual captures saved during the run |
traces/<task>/latest is a symlink to the most recent run.
Models
| Model |
Cost |
Best for |
claude-sonnet-4-6 |
$$ |
Default — good balance of speed and accuracy |
claude-opus-4-6 |
$$$$ |
Hardest tasks, complex multi-step workflows |
claude-haiku-4-5-20251001 |
$ |
Simple tasks, high-volume iteration |
Skill lifecycle
task.md → input (you write this, don't edit after)
strategy.md → working file (auto-improved each iteration)
skill.md → output (graduated from strategy.md when ready to ship)
A task is ready to graduate when it passes on 2+ of the last 3 consecutive runs.
