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computer-use

Operate desktop apps and isolated browsers on registered computers. Use for tasks needing an app interface, accessibility, screenshots or recording. Use Chromewhale for the user's signed-in Chrome.

Quality

95%

Does it follow best practices?

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SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Quality

Content

100%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.

An exceptionally tight operator manual: exact tool syntax, explicit verification and consent rules, error-recovery loops, and well-signaled one-level-deep references that all resolve to real bundle files. No significant weaknesses found in any dimension.

DimensionReasoningScore

Conciseness

The body is lean and dense with tool-specific operational facts Claude cannot know ('resync_required:true supplies a new full baseline', 'removed_indices left that view'), with zero padding and no explanation of known concepts — every token earns its place.

5 / 5

Actionability

Provides fully executable guidance: exact tool calls with arguments ('computer {action:"list"}', 'open_application {activate:false}', 'find:{query,role,app_ref?,window_id?}', 'run_actions' grouping 1–8 steps) plus concrete recovery rules for staleness, ambiguity, and timeouts.

5 / 5

Workflow Clarity

The 'Observe, act, verify' sequence is explicitly numbered with validation checkpoints ('Verify with fresh state or field readback; a sent action is not proof of success') and feedback loops (stale raster → re-observe; timeout → re-observe; refusal → consult refusal-codes), and destructive actions are gated by a single-use token protocol — no validation cap applies.

5 / 5

Progressive Disclosure

A concise overview body with a dedicated 'Read details when needed' section pointing to three one-level-deep references, each with a clear when-to-read signal; all three referenced files (operating-details.md, quick-reference.md, refusal-codes.md) exist in the bundle.

5 / 5

Total

20

/

20

Passed

Description

87%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.

A strong description with an explicit 'Use for...' trigger clause, concrete capability areas, and clear routing for signed-in Chrome versus isolated browsers. The main gaps are the generic verb 'operate' and missing common synonyms (e.g., 'GUI', 'screen recording') that users might naturally say.

Suggestions

Replace or supplement the broad verb 'operate' with one or two concrete operations (e.g., 'click, type and read UI elements') to sharpen the what-clause.

Add natural trigger synonyms such as 'GUI', 'screen recording', or 'automate an app' to broaden keyword coverage for how users actually phrase these requests.

DimensionReasoningScore

Specificity

Lists several concrete capability areas — 'Operate desktop apps and isolated browsers', 'accessibility, screenshots or recording', 'Use Chromewhale for the user's signed-in Chrome' — but the verb 'operate' is broad and no specific operations are enumerated, matching the 'several specific actions; minor gaps' anchor rather than comprehensive coverage.

4 / 5

Completeness

Explicitly answers both: what ('Operate desktop apps and isolated browsers on registered computers') and when ('Use for tasks needing an app interface, accessibility, screenshots or recording') — a concrete when-clause with named triggers, matching the top anchor rather than the weaker 'when could be more explicit' level.

5 / 5

Trigger Term Quality

Includes good natural keywords users would say ('desktop apps', 'screenshots', 'recording', 'Chrome', 'browser'), but misses common variations and synonyms such as 'GUI', 'screen recording', or 'automate', so it falls short of the comprehensive synonym-level coverage anchor.

4 / 5

Distinctiveness Conflict Risk

Occupies a clear computer-use niche (registered computers, isolated browsers, signed-in Chrome) with explicit carve-outs distinguishing the three target modes, giving it distinct triggers with minimal conflict risk against other skills.

5 / 5

Total

18

/

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.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

Hmbown/Codewhale

Path

crates/tui/plugins/computer-use/skills/computer-use/SKILL.md

Reviewed

Table of Contents

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