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agent-browser

Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web apps, or automating any browser task. Triggers include requests to "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data from a page", "test this web app", "login to a site", "automate browser actions", or any task requiring programmatic web interaction.

71

Quality

89%

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SecuritybySnyk

Critical

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SKILL.md
Quality
Evals
Security

Quality

Content

81%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.

A highly actionable, well-structured body with an exemplary core workflow and explicit verification patterns. Its main weaknesses are duplicated authentication content, an inline command catalog that duplicates references/commands.md, and template links pointing to files that don't exist in the bundle.

Suggestions

Remove the duplicated authentication sections in 'Common Patterns' (Session Persistence and Authentication with State Persistence) since they restate Options 3 and 5 of 'Handling Authentication' nearly verbatim, and point to references/authentication.md instead.

Trim the ~70-line 'Essential Commands' catalog to the handful of commands needed for the core workflow and defer the full listing to the already-existing references/commands.md.

Either add the templates/ directory with the three referenced shell scripts (form-automation.sh, authenticated-session.sh, capture-workflow.sh) or remove the 'Ready-to-Use Templates' section, since the links currently point to nonexistent files.

DimensionReasoningScore

Conciseness

The body is command-dense but noticeably padded: the five authentication options in "Handling Authentication" are restated nearly verbatim in "Common Patterns" ("Session Persistence" ≈ Option 3, "Authentication with State Persistence" ≈ Option 5), and the ~70-line "Essential Commands" catalog duplicates references/commands.md. This fits 'mostly efficient but includes some unnecessary explanation or could be tightened' rather than the 'minor instances' anchor above.

3 / 5

Actionability

Every section provides copy-paste-ready executable commands with concrete worked examples — the core workflow, form submission, auth vault, diff verification, and eval shell-quoting rules with heredoc/base64 alternatives. Commands are complete and cover the common cases, matching the top anchor.

5 / 5

Workflow Clarity

The core workflow is explicitly numbered (Navigate → Snapshot → Interact → Re-snapshot), ref invalidation is called out as a "MUST re-snapshot" lifecycle rule, and the "Diffing (Verifying Changes)" section supplies an explicit validation loop (snapshot → action → diff snapshot) with wait strategies for slow pages — clear sequence with explicit validation steps and error-recovery guidance.

5 / 5

Progressive Disclosure

The "Deep-Dive Documentation" table clearly signals one-level-deep references with a 'When to Use' column, and all 7 referenced files exist in references/. However, the three templates/*.sh links in "Ready-to-Use Templates" point to a nonexistent directory, and the inline Essential Commands catalog is content that belongs in references/commands.md — good structure with minor organization gaps rather than the clean top anchor.

4 / 5

Total

17

/

20

Passed

Description

96%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.

An excellent description: concrete capability list, explicit use-when guidance, and abundant natural trigger phrases in third-person voice. The only weakness is a broad trailing catch-all phrase that slightly raises overlap risk with general web-interaction skills.

DimensionReasoningScore

Specificity

The description lists multiple specific concrete actions — "navigating pages, filling forms, clicking buttons, taking screenshots, extracting data, testing web apps, or automating any browser task" — giving comprehensive coverage of the skill's capabilities, matching the top anchor rather than the 'minor gaps' anchor below it.

5 / 5

Completeness

It explicitly answers both 'what' ("Browser automation CLI for AI agents... interact with websites, including navigating pages, filling forms...") and 'when' ("Use when the user needs to..." plus "Triggers include requests to...") with concrete trigger phrases, matching the anchor requiring both clearly and explicitly.

5 / 5

Trigger Term Quality

It includes comprehensive natural trigger phrases users would actually say: "open a website", "fill out a form", "click a button", "take a screenshot", "scrape data from a page", "test this web app", "login to a site", "automate browser actions" — covering synonyms and common phrasings, matching the top anchor.

5 / 5

Distinctiveness Conflict Risk

Browser automation with screenshot/form-fill triggers is a clear niche mostly distinct from other skills, but the closing catch-all "or any task requiring programmatic web interaction" is broad enough to overlap with web-fetching or scraping skills, placing it between the 'minimal conflict risk' and 'minor overlap risk' anchors — noticeably above the midpoint but not a clean top anchor.

4 / 5

Total

19

/

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.

Validation — 13 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

skill_md_line_count

SKILL.md is long (646 lines); consider splitting into references/ and linking

Warning

allowed_tools_field

'allowed-tools' contains unusual tool name(s)

Warning

relative_links

Relative link issues: 3 missing

Warning

Total

13

/

16

Passed

Repository

databricks/devhub

Path

.agents/skills/agent-browser/SKILL.md

Reviewed

Table of Contents

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