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android-legacy-security

Harden Intent handling, WebView configuration, and FileProvider access in Android apps. Use when securing Intent extras, configuring WebViews, or exposing files via FileProvider.

67

Quality

82%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Passed

No known issues

SKILL.md
Quality
Evals
Security

Quality

Content

64%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

This is a well-structured, concise security hardening skill that efficiently communicates key Android security directives without over-explaining. Its main weaknesses are the lack of inline executable code examples (relying on a missing reference file) and the absence of verification/validation steps for confirming that hardening measures are correctly applied.

Suggestions

Add at least one inline executable code snippet per section (e.g., a manifest XML snippet for exported=false, a Kotlin WebView configuration block, a FileProvider XML + code example) so the skill is actionable without the reference file.

Include a verification checklist or validation step (e.g., 'Run `aapt dump xmltree app.apk AndroidManifest.xml` to verify no unintended exported components') to improve workflow clarity for security-critical operations.

Provide the referenced `references/implementation.md` bundle file, or inline the most critical examples if the reference file cannot be included.

DimensionReasoningScore

Conciseness

The content is lean and efficient. It avoids explaining what Intents, WebViews, or FileProviders are, assumes Claude's Android knowledge, and every bullet point delivers actionable security guidance without padding.

3 / 3

Actionability

The skill provides specific configuration directives (e.g., `android:exported="false"`, `javaScriptEnabled = false`, `EncryptedSharedPreferences`) but lacks executable code examples. The concrete code is deferred to `references/implementation.md`, which is not provided in the bundle, leaving the main skill without copy-paste ready snippets.

2 / 3

Workflow Clarity

The content is organized into clear categories (Intents, WebViews, Storage) with specific directives, but there is no sequenced workflow, no validation checkpoints, and no feedback loops for verifying that hardening has been correctly applied. For security hardening—a domain where verification matters—this is a gap.

2 / 3

Progressive Disclosure

The skill references `references/implementation.md` for detailed examples, which is a good one-level-deep structure. However, the bundle has no files, so the referenced file doesn't exist, undermining the progressive disclosure. The references are also somewhat redundant (two links to the same file) without clear differentiation of what each section covers.

2 / 3

Total

9

/

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.

This is a strong, well-crafted skill description that clearly identifies three specific Android security hardening tasks and provides an explicit 'Use when' clause with matching trigger terms. It uses proper third-person voice and is concise without being vague. The domain-specific terminology makes it highly distinctive and unlikely to conflict with other skills.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'Harden Intent handling', 'WebView configuration', and 'FileProvider access'. These are distinct, well-defined Android security tasks rather than vague abstractions.

3 / 3

Completeness

Clearly answers both 'what' (harden Intent handling, WebView configuration, FileProvider access) and 'when' (explicit 'Use when' clause covering securing Intent extras, configuring WebViews, or exposing files via FileProvider).

3 / 3

Trigger Term Quality

Includes strong natural keywords that Android developers would use: 'Intent extras', 'WebViews', 'FileProvider', 'Android apps', 'securing', 'configuring', 'exposing files'. These are terms developers naturally use when discussing Android security hardening.

3 / 3

Distinctiveness Conflict Risk

Targets a very specific niche—Android component security hardening for Intents, WebViews, and FileProvider. These are distinct Android-specific concepts unlikely to overlap with general security or web development skills.

3 / 3

Total

12

/

12

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.

Validation9 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

9

/

11

Passed

Repository
HoangNguyen0403/agent-skills-standard
Reviewed

Table of Contents

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