CtrlK
BlogDocsLog inGet started
Tessl Logo

flutter-expert

Master Flutter development with Dart 3, advanced widgets, and multi-platform deployment.

22

Quality

11%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Passed

No known issues

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/flutter-expert/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

0%

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

This skill is essentially a capability catalog or persona description rather than an actionable skill file. It exhaustively lists Flutter topics Claude already knows without providing any concrete code, commands, workflows, or novel guidance. The content is extremely verbose, entirely abstract, and fails on every dimension of the rubric.

Suggestions

Replace the massive capability lists with a concise quick-start section containing 2-3 executable Flutter code patterns (e.g., Riverpod setup, platform channel example, widget test template) that demonstrate the skill's unique value.

Add concrete, multi-step workflows with validation checkpoints for key tasks like 'setting up a new Flutter project with clean architecture' or 'deploying to multiple platforms', including specific commands and verification steps.

Remove all sections that merely list topics Claude already knows (Capabilities, Knowledge Base, Behavioral Traits) and replace with specific, opinionated guidance on preferred patterns, common pitfalls, and project-specific conventions.

Either provide the referenced `resources/implementation-playbook.md` bundle file with detailed examples, or inline the most critical actionable content directly in the SKILL.md.

DimensionReasoningScore

Conciseness

Extremely verbose and padded with information Claude already knows. The massive 'Capabilities' section is essentially a resume listing Flutter topics rather than teaching anything new. Lists like state management options, architecture patterns, and platform integrations describe what Claude already understands without adding actionable value. The content could be reduced by 80%+ without losing useful instruction.

1 / 3

Actionability

Contains zero executable code, no concrete commands, no specific examples, and no copy-paste ready snippets. Everything is abstract description ('Custom animations with AnimationController and Tween', 'Isolate usage for CPU-intensive tasks') rather than concrete instruction. The 'Example Interactions' section lists prompts but provides no actual solutions or code patterns.

1 / 3

Workflow Clarity

The 'Response Approach' section lists 8 high-level steps but they are vague directives ('Analyze requirements', 'Recommend state management') with no validation checkpoints, no error recovery, and no concrete sequencing. There is no actionable workflow for any specific Flutter task despite the skill covering complex multi-step operations like deployment and platform integration.

1 / 3

Progressive Disclosure

References `resources/implementation-playbook.md` but no bundle files are provided, making this a dead reference. The entire skill is a monolithic wall of bullet-pointed lists with no meaningful structure separating quick-start content from advanced reference material. All content is dumped inline with no navigation or layering.

1 / 3

Total

4

/

12

Passed

Description

22%

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 description reads more like a course title than a skill description. It lacks concrete actions, has no 'Use when...' clause, and relies on vague terms like 'Master' and 'advanced' without specifying what the skill actually does. The Flutter/Dart domain anchoring provides some distinctiveness but is insufficient for reliable skill selection.

Suggestions

Replace the vague 'Master Flutter development' with specific actions like 'Creates Flutter apps, builds custom widgets, manages state with Provider/Riverpod, configures platform-specific builds for iOS, Android, and web'.

Add an explicit 'Use when...' clause such as 'Use when the user asks about Flutter, Dart, mobile app development, cross-platform apps, or building iOS/Android/web applications with Flutter'.

Remove the aspirational tone ('Master') and use third-person declarative voice describing concrete capabilities (e.g., 'Scaffolds Flutter projects, debugs widget trees, implements navigation and routing').

DimensionReasoningScore

Specificity

The description uses vague language like 'Master Flutter development' and 'advanced widgets' without listing any concrete actions. There are no specific capabilities described—no verbs like 'create', 'build', 'debug', or 'deploy'.

1 / 3

Completeness

The description vaguely addresses 'what' (Flutter development) but has no 'when' clause or explicit trigger guidance. The lack of a 'Use when...' clause caps this at 2 per the rubric, and the 'what' is also weak, so it scores 1.

1 / 3

Trigger Term Quality

It includes some relevant keywords like 'Flutter', 'Dart 3', 'widgets', and 'multi-platform deployment' that users might mention, but misses common variations like 'mobile app', 'iOS', 'Android', 'web app', 'cross-platform', or specific tasks like 'state management' or 'UI layout'.

2 / 3

Distinctiveness Conflict Risk

Mentioning 'Flutter' and 'Dart 3' provides some distinctiveness from general coding skills, but 'advanced widgets' and 'multi-platform deployment' are broad enough to overlap with other mobile or cross-platform development skills.

2 / 3

Total

6

/

12

Passed

Validation

90%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation10 / 11 Passed

Validation for skill structure

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

10

/

11

Passed

Repository
sickn33/antigravity-awesome-skills
Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.