arn-code-init
Optional customization and upgrade tool. This skill should be used when the user says "initialize arness code", "arness code init", "arn-code-init", "init arness code", "setup arness code", "arness code setup", "set up arness code", "start arness code", "upgrade arness code", "update arness code", "configure arness code for this project", "add arness code to this project", "reconfigure arness code", "review arness config", "customize arness config", "arness settings", or wants to customize Arness configuration, review current settings, or upgrade after a plugin update. Handles both existing codebases (analyzes patterns) and greenfield projects (recommends patterns based on technology choices). Also handles upgrades after plugin updates.
79
76%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./plugins/arn-code/skills/arn-code-init/SKILL.mdQuality
Discovery
89%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
The description excels at trigger term coverage and distinctiveness, with an exhaustive list of branded trigger phrases that make it nearly impossible to confuse with other skills. The completeness is strong with both 'what' and 'when' clearly addressed. The main weakness is that the opening line ('Optional customization and upgrade tool') is vague about what specific actions the skill performs—it could benefit from more concrete descriptions of what customization and configuration actually entails.
Suggestions
Replace the vague opening 'Optional customization and upgrade tool' with specific concrete actions, e.g., 'Initializes Arness Code configuration files, generates project-specific coding conventions, and upgrades plugin settings.'
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | The description mentions some actions like 'customization and upgrade', 'analyzes patterns', 'recommends patterns based on technology choices', and 'handles upgrades after plugin updates', but the core capability ('Optional customization and upgrade tool') is vague and doesn't list concrete specific actions like what exactly it configures or customizes. | 2 / 3 |
Completeness | The description answers both 'what' (customization and upgrade tool that analyzes patterns for existing codebases and recommends patterns for greenfield projects, handles upgrades) and 'when' (explicit 'Use when' clause with extensive trigger phrases and contextual triggers like 'wants to customize Arness configuration, review current settings, or upgrade after a plugin update'). | 3 / 3 |
Trigger Term Quality | The description includes an extensive list of natural trigger phrases users would say, covering many variations like 'initialize arness code', 'arness code init', 'arn-code-init', 'setup arness code', 'upgrade arness code', 'update arness code', 'configure arness code', 'review arness config', 'customize arness config', and 'arness settings'. These are highly specific and cover many natural phrasings. | 3 / 3 |
Distinctiveness Conflict Risk | The skill is highly distinctive due to the 'Arness' branding and very specific trigger phrases. It would be extremely unlikely to conflict with other skills since all triggers are namespaced to 'arness code' or 'arness config'. | 3 / 3 |
Total | 11 / 12 Passed |
Implementation
62%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a highly actionable and well-structured skill with excellent workflow clarity, explicit validation steps, and comprehensive error handling. However, it is severely over-engineered in terms of token efficiency — the ~500+ line body contains enormous amounts of detail that could be offloaded to reference files or compressed significantly. The upgrade flow essentially duplicates much of the main flow's logic inline rather than referencing shared procedures.
Suggestions
Extract the Upgrade Flow (Steps U1-U9) into a separate reference file (e.g., upgrade-flow.md) and summarize it with a 5-10 line overview in the main SKILL.md, reducing the body by ~40%.
Move the detailed label table, config field format, and backward compatibility notes into reference files — the main skill only needs to say 'create labels per platform-labels.md' and 'write config per config-format.md'.
Compress repetitive patterns: Steps 4, 5, 7, and 8 all follow the same 'ask directory, suggest default, mkdir -p' pattern — define it once and reference it for each directory choice.
Remove explanatory text that Claude can infer from context, such as the detailed descriptions of what each config field means and the extensive 'backward compatibility' section — these add tokens without adding actionable guidance.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | This skill is extremely verbose at ~500+ lines with extensive detail that could be significantly compressed. Many steps include exhaustive explanations, tables, and edge cases that could be offloaded to reference files. The upgrade flow alone is massive and repeats patterns from the main flow. Claude doesn't need this level of hand-holding for config management tasks. | 1 / 3 |
Actionability | The skill provides highly specific, concrete guidance throughout: exact CLI commands (gh label create, git remote -v, mkdir -p), specific file paths, exact config field names and values, precise JSON structures for settings.json, and detailed decision trees with explicit outcomes for each branch. | 3 / 3 |
Workflow Clarity | The workflow is exceptionally well-sequenced with clear step numbering, explicit branching (Flow A vs Flow B, upgrade vs reconfigure), validation checkpoints (schema validation in Step 6, doctor diagnostics in U1), feedback loops (re-invoke agents if output incomplete, fix and re-validate), and a comprehensive verification checklist in Step 10. Error handling covers partial failures and graceful exits. | 3 / 3 |
Progressive Disclosure | The skill references external files appropriately (pattern-schema.md, greenfield-questions.md, bkt-setup.md, template-setup.md, platform-labels.md) but the main SKILL.md itself is monolithic — the upgrade flow, error handling, and backward compatibility sections could be split into separate reference files. The massive inline content undermines the progressive disclosure pattern despite good external references. | 2 / 3 |
Total | 9 / 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.
Validation — 9 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
skill_md_line_count | SKILL.md is long (626 lines); consider splitting into references/ and linking | Warning |
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 9 / 11 Passed | |
- Repository
- AppsVortex/arness
- Commit
1fe948f
- Reviewed
Table of Contents
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