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copilot-sdk

Build applications that programmatically interact with GitHub Copilot. The SDK wraps the Copilot CLI via JSON-RPC, providing session management, custom tools, hooks, MCP server integration, and streaming across Node.js, Python, Go, and .NET.

58

Quality

68%

Does it follow best practices?

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SecuritybySnyk

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tessl review fix ./skills/copilot-sdk/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

67%Scale 1-5

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

This skill is highly actionable with excellent executable code examples across four languages, but suffers from being overly long and monolithic. The repetition of nearly identical examples in four languages inflates the token cost significantly. The content would benefit from splitting language-specific examples into separate files and keeping SKILL.md as a concise overview with the core pattern in one language plus references to language-specific guides.

Suggestions

Split language-specific code examples into separate files (e.g., NODEJS.md, PYTHON.md, GO.md, DOTNET.md) and keep only one primary language example in SKILL.md with links to the others.

Move the detailed configuration tables (Client Configuration, Session Configuration, MCP Config Fields) into a separate REFERENCE.md file to reduce the main file's token footprint.

Remove trivially simple sections like Custom Agents, System Message, and Skills Integration that show single-property configuration — these can be covered in the configuration reference table.

Add a brief error handling/validation workflow for common failure modes (e.g., check CLI availability before creating client, verify session creation succeeded before sending messages).

DimensionReasoningScore

Conciseness

The skill covers four languages with full code examples for each feature, leading to significant repetition. The core pattern section alone has four nearly identical examples. Some sections like Custom Agents, System Message, and Skills Integration are trivially simple and add little value. However, the content is generally well-structured and avoids explaining basic concepts Claude already knows.

3 / 5

Actionability

The skill provides fully executable, copy-paste ready code examples across all four supported languages. Every feature (streaming, custom tools, hooks, MCP, auth, BYOK, session persistence) includes concrete, runnable code with specific API calls, parameter types, and configuration options.

5 / 5

Workflow Clarity

The core pattern (Client → Session → Message) is clearly sequenced and demonstrated with complete examples including cleanup (client.stop/defer). Authentication has a clear priority order. However, there are no explicit validation checkpoints or error recovery workflows — the debugging section lists common issues but doesn't integrate them into a validate-fix-retry flow. Since this isn't primarily a destructive/batch operation skill, the missing feedback loops don't trigger the cap at 3.

4 / 5

Progressive Disclosure

This is a monolithic ~350-line file with no bundle files to offload content to. The four-language code examples for each feature, the extensive configuration tables, and the detailed API reference all belong in separate files. There are external references at the bottom but no internal bundle structure to organize the content. The skill would benefit greatly from splitting into language-specific guides and a separate API reference.

2 / 5

Total

14

/

20

Passed

Description

70%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 technically detailed and clearly identifies a specific niche (GitHub Copilot SDK development), listing concrete capabilities and supported languages. Its main weakness is the absence of an explicit 'Use when...' clause, which would help Claude know precisely when to select this skill. The trigger terms are good but could include a few more natural user phrasings.

Suggestions

Add an explicit 'Use when...' clause, e.g., 'Use when the user wants to build integrations with GitHub Copilot, create Copilot extensions, or programmatically interact with the Copilot CLI.'

Include additional natural trigger terms like 'Copilot extension', 'Copilot API', 'Copilot plugin', or 'Copilot integration' to capture more user query variations.

DimensionReasoningScore

Specificity

Lists several specific capabilities: session management, custom tools, hooks, MCP server integration, streaming, and mentions the JSON-RPC wrapping mechanism. It also specifies supported languages (Node.js, Python, Go, .NET). Minor gaps exist—it could elaborate on what 'custom tools' or 'hooks' entail in practice.

4 / 5

Completeness

The 'what' is clearly stated—building applications that interact with GitHub Copilot via an SDK with specific features. However, there is no explicit 'when' clause (e.g., 'Use when...'), which per the rubric should cap this dimension at 3.

3 / 5

Trigger Term Quality

Includes strong trigger terms like 'GitHub Copilot', 'SDK', 'JSON-RPC', 'MCP server', 'Node.js', 'Python', 'Go', '.NET', and 'streaming'. Missing some natural user phrases like 'Copilot extension', 'Copilot API', 'Copilot plugin', or 'build Copilot tools' that users might naturally say.

4 / 5

Distinctiveness Conflict Risk

Highly distinctive—the combination of 'GitHub Copilot', 'SDK', 'JSON-RPC', and 'Copilot CLI' creates a very clear niche. It's unlikely to conflict with other skills since it targets a very specific integration domain.

5 / 5

Total

16

/

20

Passed

Validation

81%

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

Validation9 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

skill_md_line_count

SKILL.md is long (517 lines); consider splitting into references/ and linking

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

9

/

11

Passed

Repository
administrakt0r/AI-Agents-Safe-Coding-Skills
Reviewed

Table of Contents

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