Content
82%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.
A tight, highly actionable reference: dual-language executable examples, genuine domain knowledge Claude would not reliably have (24-hour window semantics, 80 MPS cap, sandbox 3-day expiry), and a clean section structure. The main gaps are the absence of an explicit verify-after-send step and the mostly-inline layout for reference-grade detail.
Suggestions
Add a short post-send verification step (check message.status / error_code, note the 4-hour queue expiry) to close the workflow's feedback loop.
Consolidate the duplicated mode rules in the Overview prose vs. the table into a single statement.
Consider moving the Common Errors table and CANNOT limits into a references/ file if the skill grows, keeping SKILL.md a lean overview.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is lean — tables, executable snippets, and a CANNOT list with no padding or explanations of concepts Claude already knows. The only trims available are minor: the Overview prose ("Two sending modes apply: free-form... and template... ") restates what the mode table immediately below already says. | 4 / 5 |
Actionability | Copy-paste-ready Python and Node.js code for free-form, template, and media sends, with real env-var auth wiring, sandbox join instructions, and an error table pairing codes (63003, 63018, 63020) with concrete fixes — fully executable and covering the common cases. | 5 / 5 |
Workflow Clarity | Prerequisites → Quickstart → Key Patterns → Common Errors forms a clear sequence, and "always check which mode is required" plus the silent-failure warning is a real checkpoint. It falls short of 5 because there is no explicit post-send verification step (e.g., check message.status/error_code before assuming delivery), and the sandbox→template-approval→production-sender path is scattered across sections rather than sequenced. | 4 / 5 |
Progressive Disclosure | No bundle files exist (no references/, scripts/, assets/), and the ~155-line body is well-sectioned with clear headers and clearly signaled one-level-deep cross-skill links (Prerequisites, Next Steps). It scores 4 rather than 5 because the skill exceeds the self-contained threshold where everything comfortably fits inline — the error catalog and CANNOT limits are stable reference material that could live in a separate file. | 4 / 5 |
Total | 17 / 20 Passed |