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peekaboo

macOS screen capture, accessibility inspection, and background-first app/window/UI automation with Peekaboo v4.

66

Quality

79%

Does it follow best practices?

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Adds up to 20 points to the overall score

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SecuritybySnyk

Passed

No findings from the security scan

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tessl review fix ./skills/peekaboo/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

88%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 body is highly actionable with executable commands and a well-validated workflow; it is concise and well-structured, with only slight room to offload the command catalog into a reference file.

Suggestions

Consider moving the long 'Common commands' code catalog into a references file (e.g. commands.md) and summarizing only the canonical patterns inline, to push progressive disclosure toward 5.

Trim the repeated foreground/background caveats between 'Background-first safety' and 'Click coordinates safely' to tighten conciseness further.

Add a one-line 'Use Peekaboo when...' trigger near the top of the body to mirror the frontmatter gap and aid skill selection.

DimensionReasoningScore

Conciseness

Dense operational specifics with no concept padding; assumes Claude knows the domain. Minor redundancy across the foreground/background caveats keeps it just short of fully lean.

4 / 5

Actionability

Fully executable, copy-paste-ready bash snippets with exact flags and selectors, covering the common cases (status, capture, AX tree, click, type, paste) plus targeted examples for coordinate clicks.

5 / 5

Workflow Clarity

A 9-step numbered workflow with explicit validation checkpoints (version, host selection, permissions, fresh snapshots, mutation verification, artifact checks) and a retry feedback loop ('run a fresh see before retry'), satisfying the destructive/batch validation requirement.

5 / 5

Progressive Disclosure

Well-organized sections with a one-level-deep pointer to the source-of-truth docs; no bundle files exist, and ~150 lines of inlined command reference could plausibly be split out, keeping it at 4 rather than 5.

4 / 5

Total

18

/

20

Passed

Description

70%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, tool-scoped, and distinct, but it omits any explicit 'Use when...' trigger guidance, which caps completeness at 3 and limits the overall score.

Suggestions

Add an explicit trigger clause, e.g. 'Use when capturing or automating native macOS UI, inspecting Accessibility trees, or driving apps in the background from SSH/LaunchAgent/Codex sessions.'

Add common synonyms like 'screenshot' alongside 'screen capture' to broaden natural-term coverage.

Optionally name a couple of concrete secondary actions (e.g. 'click coordinates, type, paste, capture video') to round out the capability list toward a 5 on specificity.

DimensionReasoningScore

Specificity

Names the domain and several concrete capabilities ('screen capture, accessibility inspection, and background-first app/window/UI automation'), with only minor coverage gaps (no mention of e.g. video/coordinate input).

4 / 5

Completeness

Provides a clear 'what' but no explicit 'Use when...' trigger clause, so per the guidelines completeness is capped at 3 even though the capability list is strong.

3 / 5

Trigger Term Quality

Includes natural terms users would say ('screen capture', 'accessibility inspection', 'UI automation', 'app/window'), but misses common synonyms like 'screenshot' or file extensions; good but not comprehensive coverage.

4 / 5

Distinctiveness Conflict Risk

Names a specific tool ('Peekaboo v4') and a distinct macOS-native niche, making overlap with other skills minimal and triggers clearly scoped.

5 / 5

Total

16

/

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
steipete/agent-scripts
Reviewed

Table of Contents

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