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testland/freezegun-python

Wraps freezegun (github.com/spulec/freezegun), the Python time-mocking library: @freeze_time decorator / context manager, freeze_time(...).start() + stop(), tick / move_to / tz_offset, and integration with datetime.now / time.time / time.localtime. Use when testing Python code that calls datetime / time.

80

Quality

100%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

Overview
Quality
Evals
Security
Files

Quality

Content

100%

Reviews 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-organized, executable reference: concise code for every common freezegun pattern, a useful anti-patterns table, honest limitations, and advanced material correctly offloaded to a one-level-deep reference file. It mirrors the rubric's good-overall example structure.

DimensionReasoningScore

Conciseness

The body is lean and code-forward, assuming Claude's competence — sections are tight code plus one-line notes, with no explaining of concepts Claude already knows — so every token earns its place.

3 / 3

Actionability

Provides fully executable, copy-paste-ready examples for decorator, context manager, manual start/stop, tick, move_to, and tz_offset, plus concrete commands (pip install freezegun, pytest tests/).

3 / 3

Workflow Clarity

This is a simple single-purpose skill whose single action (apply freeze_time) is unambiguous across clearly demonstrated variants, with test assertions serving as verification; no destructive/batch loop is required.

3 / 3

Progressive Disclosure

The core usage lives in SKILL.md while DST/async/CI material is split into a clearly-signaled, one-level-deep real file (references/advanced-scenarios.md), matching the score-3 anchor.

3 / 3

Total

12

/

12

Passed

Description

100%

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, third-person, and tightly scoped to freezegun, with both a clear capability list and an explicit 'Use when' trigger clause. It closely matches the rubric's good examples.

DimensionReasoningScore

Specificity

Lists multiple concrete actions/APIs — '@freeze_time decorator / context manager', 'start() + stop()', 'tick / move_to / tz_offset', and integration with datetime.now / time.time / time.localtime — matching the score-3 anchor for multiple specific concrete actions.

3 / 3

Completeness

Explicitly answers both what (wraps freezegun and enumerates its APIs) and when via the 'Use when testing Python code that calls datetime / time' clause, satisfying the score-3 anchor for explicit triggers.

3 / 3

Trigger Term Quality

Includes natural terms a user would say — 'freezegun', 'time-mocking', 'testing Python code that calls datetime / time', datetime.now, time.time — giving good coverage rather than only some relevant keywords.

3 / 3

Distinctiveness Conflict Risk

Targets a clear niche — freezegun, the Python time-mocking library — with distinct triggers, making it unlikely to fire for the wrong skill.

3 / 3

Total

12

/

12

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.

Reviewed

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