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technical-specification

Creates detailed technical specifications for software projects covering requirements, architecture, APIs, and testing strategies. Use when planning features, documenting system design, or creating architecture decision records.

Install with Tessl CLI

npx tessl i github:secondsky/claude-skills --skill technical-specification
What are skills?

93

1.21x

Quality

89%

Does it follow best practices?

Impact

100%

1.21x

Average score across 3 eval scenarios

Optimize this skill with Tessl

npx tessl skill review --optimize ./plugins/technical-specification/skills/technical-specification/SKILL.md
SKILL.md
Review
Evals

Discovery

92%

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 well-crafted skill description that clearly articulates specific capabilities and includes explicit trigger guidance. The description uses proper third-person voice and covers concrete deliverables. Minor weakness is potential overlap with general documentation or planning skills due to some broader trigger terms.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'requirements, architecture, APIs, and testing strategies' - these are distinct, concrete deliverables rather than vague language.

3 / 3

Completeness

Clearly answers both what ('Creates detailed technical specifications...covering requirements, architecture, APIs, and testing strategies') AND when ('Use when planning features, documenting system design, or creating architecture decision records').

3 / 3

Trigger Term Quality

Includes natural keywords users would say: 'technical specifications', 'planning features', 'system design', 'architecture decision records' - these are terms developers naturally use when requesting this type of work.

3 / 3

Distinctiveness Conflict Risk

While 'technical specifications' and 'architecture decision records' are fairly specific, terms like 'planning features' and 'system design' could overlap with general project planning or documentation skills.

2 / 3

Total

11

/

12

Passed

Implementation

87%

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

This is a strong skill with excellent actionability and conciseness. The template is immediately usable with concrete examples and specific metrics. The main weakness is the lack of explicit workflow guidance for the spec creation/review process itself, though for a template-focused skill this is a minor gap.

Suggestions

Add a brief workflow section (3-5 lines) describing the spec creation process: draft → internal review → stakeholder review → approval, with checkpoints for when to proceed

DimensionReasoningScore

Conciseness

The content is lean and efficient, providing a complete template without unnecessary explanation. It assumes Claude understands what technical specifications are and jumps directly into actionable structure.

3 / 3

Actionability

Provides a fully copy-paste ready template with concrete examples including SQL schemas, API request/response formats, and specific metrics (200ms, 99.9% uptime). The tables and code blocks are immediately usable.

3 / 3

Workflow Clarity

While the template includes an implementation plan with phases, there are no explicit validation checkpoints or feedback loops for the spec creation process itself. Missing guidance on when to validate the spec or iterate based on review feedback.

2 / 3

Progressive Disclosure

Excellent structure with a concise inline template for quick use, then clear reference to a comprehensive template in references/template.md for advanced needs. One-level-deep reference is well-signaled with a clear list of what the full template contains.

3 / 3

Total

11

/

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.

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Reviewed

Table of Contents

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