CtrlK
BlogDocsLog inGet started
Tessl Logo

python-tests

Write regression tests for FastMCP changes using its pytest fixtures, in-memory clients, and protocol boundaries.

66

Quality

79%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide

SecuritybySnyk

Passed

No findings from the security scan

Fix and improve this skill with Tessl

tessl review fix ./.agents/skills/python-tests/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

92%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 a tight, actionable, well-sequenced testing guide with explicit validation and feedback loops. The only gap is the absence of copy-paste-ready code examples, which keeps actionability just below maximum.

DimensionReasoningScore

Conciseness

The body is lean and assumes Claude's competence with pytest, async, and MCP concepts, with every line delivering actionable guidance rather than padding or basic explanations.

5 / 5

Actionability

It names exact, executable APIs ('Client(server)', 'httpx2.MockTransport', 'inline_snapshot', 'tmp_path', 'asyncio_mode = "auto"') and specific commands, but provides no copy-paste-ready code blocks, keeping it just below fully executable.

4 / 5

Workflow Clarity

The bug-fix workflow is explicitly sequenced with a validation checkpoint ('confirm it fails for the reported reason, then run it with the fix') and an error-recovery feedback loop ('reproduce it on the unchanged base').

5 / 5

Progressive Disclosure

The skill is under 50 lines, single-purpose, requires no external references, and is well-organized into prose and bullets, satisfying the simple-skill exception for a top score.

5 / 5

Total

19

/

20

Passed

Description

66%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 and well-targeted to the FastMCP testing niche, with concrete tooling references. Its main weakness is the absence of an explicit 'Use when...' trigger clause, which limits completeness.

Suggestions

Add an explicit trigger clause, e.g. 'Use when writing or updating regression tests for FastMCP changes.'

Include natural synonyms users might say, such as 'test suite', 'unit tests', or 'integration tests', to broaden trigger coverage.

Consider naming a second concrete action beyond 'write regression tests' (e.g. 'reproduce reported failures') to push specificity toward comprehensive.

DimensionReasoningScore

Specificity

The description names the domain ('regression tests for FastMCP changes') and several concrete mechanisms ('pytest fixtures, in-memory clients, and protocol boundaries'), but the core action is singular rather than a comprehensive multi-action list, so it sits below the score-5 anchor.

4 / 5

Completeness

It clearly states the 'what' ('Write regression tests for FastMCP changes using...') but provides no 'Use when...' clause or equivalent explicit trigger guidance, which the guidelines cap at 3.

3 / 5

Trigger Term Quality

Natural domain terms like 'regression tests', 'FastMCP', and 'pytest fixtures' are present, but common synonyms or variations (e.g. 'test suite', 'unit tests') are missing, placing it just below comprehensive keyword coverage.

4 / 5

Distinctiveness Conflict Risk

The 'FastMCP changes' framing carves a distinct niche with minimal conflict risk, though it could still overlap with a more general testing skill, keeping it below a 5.

4 / 5

Total

15

/

20

Passed

Validation

100%

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

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
PrefectHQ/fastmcp
Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.