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error-handling

Patterns for robust error handling across TypeScript, Python, and Go. Covers typed errors, error boundaries, retries, circuit breakers, and user-facing error messages. Use when designing error types, retries, circuit breakers, or user-facing failure messages in TypeScript, Python, or Go.

73

Quality

91%

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SKILL.md
Quality
Evals
Security

Quality

Content

82%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The content is highly actionable with executable cross-language code and a useful checklist, organized into clear sections. It is slightly verbose from duplicated hierarchies across languages and lacks an explicit end-to-end validated workflow, but overall well-structured for a single-file skill.

Suggestions

Consolidate the near-identical TypeScript and Python AppError/exception hierarchies or move one to a reference file to reduce duplication and token cost.

Add one short end-to-end workflow (e.g., identify error → classify → map to response) with an explicit validation checkpoint, rather than only a post-hoc checklist.

Move the longer inline examples (API error handler, retry implementation) into a references/ file and link from the body to tighten the overview.

DimensionReasoningScore

Conciseness

The body is mostly lean with code-forward sections and minimal concept explanation, though the repeated near-identical AppError hierarchies across TypeScript/Python and inline API-handler examples add some length that could be trimmed. It is efficient but not maximally so.

4 / 5

Actionability

Provides fully executable, copy-paste-ready code across TypeScript, Python, and Go covering typed errors, Result types, API handlers, error boundaries, sentinel wrapping, retry-with-backoff, and user-message mapping — concrete and complete for the common cases.

5 / 5

Workflow Clarity

Core principles, per-language patterns, and a closing checklist give a clear sequenced mental model with an explicit verification checklist, but there is no single end-to-end workflow with explicit validation checkpoints for batch/destructive cases (the checklist partially compensates).

4 / 5

Progressive Disclosure

Well-organized into clear sections (When to Activate, Core Principles, per-language blocks, Retry, Messages, Checklist) with no nested references and no bundle files; for a single-file skill this is good structure, though some per-language reference content could be split out.

4 / 5

Total

17

/

20

Passed

Description

100%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is specific, complete, and trigger-rich, clearly stating both what the skill does and when to use it with concrete natural-language phrases. It is concise without padding and uses correct third-person voice.

DimensionReasoningScore

Specificity

Lists multiple concrete actions — 'typed errors, error boundaries, retries, circuit breakers, and user-facing error messages' — across three named languages, giving comprehensive coverage of the skill's capabilities.

5 / 5

Completeness

Explicitly answers both 'what' (the patterns it covers) and 'when' via a concrete 'Use when designing error types, retries, circuit breakers, or user-facing failure messages in TypeScript, Python, or Go.' clause with concrete trigger phrases.

5 / 5

Trigger Term Quality

Covers natural trigger phrases users would say ('designing error types, retries, circuit breakers, or user-facing failure messages') plus the language variants TypeScript, Python, and Go, giving comprehensive keyword coverage.

5 / 5

Distinctiveness Conflict Risk

Occupies a clear niche (error-handling patterns across three specific languages) with distinct triggers unlikely to fire for unrelated skills; minimal conflict risk.

5 / 5

Total

20

/

20

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository
affaan-m/ECC
Reviewed

Table of Contents

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