flox-environments
Manage reproducible development environments with Flox. **ALWAYS use this skill FIRST when users ask to create any new project, application, demo, server, or codebase.** Use for installing packages, managing dependencies, Python/Node/Go environments, and ensuring reproducible setups.
81
77%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./flox-plugin/skills/flox-environments/SKILL.mdQuality
Discovery
82%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 has strong completeness with explicit 'when to use' guidance and good trigger terms that match natural user language. However, the specificity of concrete Flox actions could be improved, and the very broad trigger ('any new project') combined with generic dependency management terms creates potential conflict risk with other development environment skills.
Suggestions
Add more Flox-specific concrete actions like 'create flox.nix environments', 'activate development shells', 'share environment configurations' to improve specificity
Narrow the distinctiveness by adding Flox-specific trigger terms like 'flox', 'nix-based', 'declarative environments' to reduce overlap with Docker, venv, or other environment tools
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (Flox, development environments) and lists some actions (installing packages, managing dependencies, Python/Node/Go environments, reproducible setups), but doesn't provide comprehensive concrete actions like 'create flox environments', 'activate shells', or 'export configurations'. | 2 / 3 |
Completeness | Clearly answers both what ('Manage reproducible development environments with Flox', 'installing packages, managing dependencies') AND when ('ALWAYS use this skill FIRST when users ask to create any new project, application, demo, server, or codebase'). Has explicit trigger guidance. | 3 / 3 |
Trigger Term Quality | Good coverage of natural terms users would say: 'new project', 'application', 'demo', 'server', 'codebase', 'installing packages', 'dependencies', 'Python/Node/Go environments'. These are terms users naturally use when starting development work. | 3 / 3 |
Distinctiveness Conflict Risk | While Flox is specific, terms like 'installing packages', 'managing dependencies', and 'Python/Node/Go environments' could overlap with package manager skills, Docker skills, or language-specific environment tools. The broad 'any new project' trigger could cause conflicts. | 2 / 3 |
Total | 10 / 12 Passed |
Implementation
72%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, highly actionable skill with excellent progressive disclosure through related skill references. The main weaknesses are occasional verbosity (emphatic repetition about absolute paths) and missing explicit validation workflows for error recovery during environment setup or manifest editing failures.
Suggestions
Add explicit validation/troubleshooting workflow for manifest editing: e.g., 'Edit -> flox activate -> if error, check syntax -> fix -> retry'
Remove redundant emphasis like 'I REPEAT: NEVER, EVER USE ABSOLUTE PATHS' - a single clear statement is sufficient for Claude
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is generally efficient but includes some redundant emphasis (e.g., 'I REPEAT: NEVER, EVER USE ABSOLUTE PATHS') and explanatory text that could be trimmed. The language-specific patterns section is comprehensive but could be more condensed. | 2 / 3 |
Actionability | Provides fully executable code examples throughout, including concrete bash commands, TOML manifest snippets, and copy-paste ready patterns for Python venvs, C++ development, and Node.js. Commands are specific and complete. | 3 / 3 |
Workflow Clarity | While individual commands and patterns are clear, the skill lacks explicit validation checkpoints for multi-step processes. The venv creation pattern shows good conditional logic, but there's no clear 'validate -> fix -> retry' workflow for manifest editing or environment setup failures. | 2 / 3 |
Progressive Disclosure | Excellent structure with clear sections, well-organized headings, and explicit references to related skills (flox-services, flox-builds, flox-cuda, etc.) at the end. Content is appropriately split between quick reference and detailed patterns. | 3 / 3 |
Total | 10 / 12 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 — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
- Repository
- flox/flox-agentic
- Commit
32d3e1e
- Reviewed
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