Content
75%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The body is a well-structured, highly actionable guide: nearly every section leads with executable TypeScript, environment setup is tabulated, and the tricky sandbox-snapshot vs accessibility-snapshot terminology is disambiguated. Main weaknesses are repeated boilerplate across the three main examples, one pseudocode placeholder in the multi-step workflow, and the absence of error-recovery guidance for failed sandbox or browser commands.
Suggestions
Factor the repeated open → get title → screenshot → base64 → close sequence into one shared helper shown once, then have the Screenshot, Snapshot, and Multi-Step sections reference it, cutting significant duplicated tokens (conciseness).
Replace the "// Parse snapshot to find element refs..." placeholder with a concrete two-line example of extracting a ref from the accessibility snapshot and filling it, making fillAndSubmitForm fully copy-paste runnable (actionability).
Add a short error-handling note showing how to detect a failed runAgentBrowserCommand (non-zero exit / missing json.data) and retry or surface the error, giving the workflows an explicit feedback loop (workflow_clarity).
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is code-dominated with almost no explanation of concepts Claude already knows, but the open/get-title/screenshot/base64/close boilerplate is repeated across the Screenshot, Snapshot, and Multi-Step examples, and the version pin "requires @vercel/sandbox 3.7 or later" sits inline. This fits the 4 anchor (efficient with minor trims possible) rather than 5 (every token earning its place). | 4 / 5 |
Actionability | Install commands, complete typed functions, an env var table, and cron config are mostly copy-paste ready, but "// Parse snapshot to find element refs..." is a placeholder inside fillAndSubmitForm and the wait args are left as an app-specific parameter. This matches the 4 anchor (mostly executable with minor gaps) rather than 5 (fully executable covering common cases). | 4 / 5 |
Workflow Clarity | Each example follows a clear open → act → close sequence with some checkpoints ("if (!ssPath) throw", try/finally around mcp.close()), but there is no error-recovery or validate-retry guidance for failed commands or timeouts. This fits the 4 anchor (clear sequence, most checkpoints, minor validation gaps) rather than 5 (explicit validation steps and feedback loops); the destructive/batch cap does not apply since this is ephemeral, non-destructive automation. | 4 / 5 |
Progressive Disclosure | The 233-line single-file skill has clean, well-ordered sections and one clearly signaled external pointer ("See examples/environments/ in the agent-browser repo"), with no buried or nested references. It fits the 4 anchor (good structure, minor organization gaps) rather than 5, since it exceeds a lean overview and some content (e.g. the framework table and cron example) could be split into reference files. | 4 / 5 |
Total | 16 / 20 Passed |