speckit-analyze
dceoy/speckit-agent-skills
Analyze spec.md, plan.md, and tasks.md for consistency, coverage gaps, and quality issues.
What is speckit-analyze?
Performs a non-destructive cross-artifact analysis of spec-kit project documentation to identify inconsistencies, duplications, ambiguities, and underspecified items. Run this after task generation to validate that requirements are properly covered and all artifacts align before implementation begins.
- Detects duplicate or near-duplicate requirements across artifacts
- Flags vague language and unresolved placeholders in specs and plans
- Maps requirements to tasks and identifies coverage gaps
- Validates alignment with project constitution principles
- Identifies terminology drift and conflicting specifications
- Reports task ordering contradictions and missing dependencies
How to install speckit-analyze
npx skills add https://github.com/dceoy/speckit-agent-skills --skill speckit-analyze- spec-kit project with .specify/ directory structure
- Completed spec.md, plan.md, and tasks.md files
- Successful execution of /speckit-tasks command prior to analysis
How to use speckit-analyze
- 1.Run the skill with optional focus areas: `speckit-analyze [focus-areas]`
- 2.Review the generated analysis report for severity-ranked findings
- 3.Check for CRITICAL and HIGH severity issues requiring immediate attention
- 4.Examine coverage gaps between requirements and tasks
- 5.Use the remediation plan to guide follow-up edits (user approval required before execution)
Use cases
- Review generated tasks against original spec to catch misalignments before coding starts
- Validate that all functional requirements have corresponding tasks
- Identify ambiguous success criteria that need clarification before implementation
- Check for constitution violations in spec, plan, or task definitions
- Consolidate duplicate requirements discovered during planning phase
- Project leads reviewing spec-kit project structure
- Teams validating task generation output
- Architects ensuring plan aligns with specification
- QA leads checking requirement coverage before development
speckit-analyze FAQ
No. This is strictly read-only analysis. It outputs a structured report and offers optional remediation suggestions, but you must explicitly approve any changes before follow-up editing commands run.
The skill aborts with an error message and instructs you to run the missing prerequisite command (e.g., /speckit-tasks to generate tasks.md).
It checks .specify/extensions.yml for before_analyze hooks. Optional hooks are reported for manual execution; mandatory hooks are automatically executed before analysis proceeds.
When a requirement, plan element, or task violates a MUST principle in .specify/memory/constitution.md. These are marked CRITICAL and require adjustment of the spec, plan, or tasks—not reinterpretation of the principle.
Up to 50 discrete findings, prioritized by severity (CRITICAL, HIGH, MEDIUM, LOW). Remaining findings are aggregated in an overflow summary to keep output concise.
Full instructions (SKILL.md)
Source of truth, from dceoy/speckit-agent-skills.
name: "speckit-analyze" description: "Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation." argument-hint: "Optional focus areas for analysis" compatibility: "Requires spec-kit project structure with .specify/ directory" metadata: author: "github-spec-kit" source: "templates/commands/analyze.md" user-invocable: true disable-model-invocation: false
User Input
$ARGUMENTS
You MUST consider the user input before proceeding (if not empty).
Pre-Execution Checks
Check for extension hooks (before analysis):
- Check if
.specify/extensions.ymlexists in the project root. - If it exists, read it and look for entries under the
hooks.before_analyzekey - If the YAML cannot be parsed or is invalid, do not skip silently: tell the user that
.specify/extensions.ymlcould not be read (include the parser error) and that no hooks were checked, including any mandatory (optional: false) hooks registered there, then continue normally - Filter out hooks where
enabledis explicitlyfalse. Treat hooks without anenabledfield as enabled by default. - For each remaining hook, do not attempt to interpret or evaluate hook
conditionexpressions:- If the hook has no
conditionfield, or it is null/empty, treat the hook as executable - If the hook defines a non-empty
condition, skip the hook and leave condition evaluation to the HookExecutor implementation
- If the hook has no
- When constructing command invocations from hook command names, replace dots (
.) with hyphens (-). For example,speckit.git.commit→/speckit-git-commit. - For each executable hook, output the following based on its
optionalflag:-
Optional hook (
optional: true):## Extension Hooks **Optional Pre-Hook**: {extension} Command: `/{command}` Description: {description} Prompt: {prompt} To execute: `/{command}` -
Mandatory hook (
optional: false):## Extension Hooks **Automatic Pre-Hook**: {extension} Executing: `/{command}` EXECUTE_COMMAND: {command} Wait for the result of the hook command before proceeding to the Goal.After emitting the block above you MUST actually invoke the hook and wait for it to finish before continuing. Run it the same way you would run the command yourself in this agent/session (the invocation may differ from the literal
{command}id shown above, e.g. a skills-mode agent runs it as/skill:speckit-...or$speckit-...). Emitting the block alone does not run the hook.
-
- If no hooks are registered or
.specify/extensions.ymldoes not exist, skip silently
Goal
Identify inconsistencies, duplications, ambiguities, and underspecified items across the three core artifacts (spec.md, plan.md, tasks.md) before implementation. This command MUST run only after /speckit-tasks has successfully produced a complete tasks.md.
Operating Constraints
STRICTLY READ-ONLY: Do not modify any files. Output a structured analysis report. Offer an optional remediation plan (user must explicitly approve before any follow-up editing commands would be invoked manually).
Constitution Authority: The project constitution (.specify/memory/constitution.md) is non-negotiable within this analysis scope. Constitution conflicts are automatically CRITICAL and require adjustment of the spec, plan, or tasks—not dilution, reinterpretation, or silent ignoring of the principle. If a principle itself needs to change, that must occur in a separate, explicit constitution update outside /speckit-analyze.
Execution Steps
1. Initialize Analysis Context
Run .specify/scripts/bash/check-prerequisites.sh --json --require-spec --require-tasks --include-tasks once from repo root and parse JSON for FEATURE_DIR and AVAILABLE_DOCS. Derive absolute paths:
- SPEC = FEATURE_DIR/spec.md
- PLAN = FEATURE_DIR/plan.md
- TASKS = FEATURE_DIR/tasks.md
Abort with an error message if any required file is missing (instruct the user to run missing prerequisite command). For single quotes in args like "I'm Groot", use escape syntax: e.g 'I'''m Groot' (or double-quote if possible: "I'm Groot").
2. Load Artifacts (Progressive Disclosure)
Load only the minimal necessary context from each artifact:
From spec.md:
- Overview/Context
- Functional Requirements
- Success Criteria (measurable outcomes — e.g., performance, security, availability, user success, business impact)
- User Stories
- Edge Cases (if present)
From plan.md:
- Architecture/stack choices
- Data Model references
- Phases
- Technical constraints
From tasks.md:
- Task IDs
- Descriptions
- Phase grouping
- Parallel markers [P]
- Referenced file paths
From constitution:
- Load
.specify/memory/constitution.mdfor principle validation
3. Build Semantic Models
Create internal representations (do not include raw artifacts in output):
- Requirements inventory: For each Functional Requirement (FR-###) and Success Criterion (SC-###), record a stable key. Use the explicit FR-/SC- identifier as the primary key when present, and optionally also derive an imperative-phrase slug for readability (e.g., "User can upload file" →
user-can-upload-file). Include only Success Criteria items that require buildable work (e.g., load-testing infrastructure, security audit tooling), and exclude post-launch outcome metrics and business KPIs (e.g., "Reduce support tickets by 50%"). - User story/action inventory: Discrete user actions with acceptance criteria
- Task coverage mapping: Map each task to one or more requirements or stories (inference by keyword / explicit reference patterns like IDs or key phrases)
- Constitution rule set: Extract principle names and MUST/SHOULD normative statements
4. Detection Passes (Token-Efficient Analysis)
Focus on high-signal findings. Limit to 50 findings total; aggregate remainder in overflow summary.
A. Duplication Detection
- Identify near-duplicate requirements
- Mark lower-quality phrasing for consolidation
B. Ambiguity Detection
- Flag vague adjectives (fast, scalable, secure, intuitive, robust) lacking measurable criteria
- Flag unresolved placeholders (TODO, TKTK, ???,
<placeholder>, etc.)
C. Underspecification
- Requirements with verbs but missing object or measurable outcome
- User stories missing acceptance criteria alignment
- Tasks referencing files or components not defined in spec/plan
D. Constitution Alignment
- Any requirement or plan element conflicting with a MUST principle
- Missing mandated sections or quality gates from constitution
E. Coverage Gaps
- Requirements with zero associated tasks
- Tasks with no mapped requirement/story
- Success Criteria requiring buildable work (performance, security, availability) not reflected in tasks
F. Inconsistency
- Terminology drift (same concept named differently across files)
- Data entities referenced in plan but absent in spec (or vice versa)
- Task ordering contradictions (e.g., integration tasks before foundational setup tasks without dependency note)
- Conflicting requirements (e.g., one requires Next.js while other specifies Vue)
5. Severity Assignment
Use this heuristic to prioritize findings:
- CRITICAL: Violates constitution MUST, missing core spec artifact, or requirement with zero coverage that blocks baseline functionality
- HIGH: Duplicate or conflicting requirement, ambiguous security/performance attribute, untestable acceptance criterion
- MEDIUM: Terminology drift, missing non-functional task coverage, underspecified edge case
- LOW: Style/wording improvements, minor redundancy not affecting execution order
6. Produce Compact Analysis Report
Output a Markdown report (no file writes) with the following structure:
Specification Analysis Report
| ID | Category | Severity | Location(s) | Summary | Recommendation |
|---|---|---|---|---|---|
| A1 | Duplication | HIGH | spec.md:L120-134 | Two similar requirements ... | Merge phrasing; keep clearer version |
(Add one row per finding; generate stable IDs prefixed by category initial.)
Coverage Summary Table:
| Requirement Key | Has Task? | Task IDs | Notes |
|---|
Constitution Alignment Issues: (if any)
Unmapped Tasks: (if any)
Metrics:
- Total Requirements
- Total Tasks
- Coverage % (requirements with >=1 task)
- Ambiguity Count
- Duplication Count
- Critical Issues Count
7. Provide Next Actions
At end of report, output a concise Next Actions block:
- If CRITICAL issues exist: Recommend resolving before
/speckit-implement - If only LOW/MEDIUM: User may proceed, but provide improvement suggestions
- Provide explicit command suggestions: e.g., "Run /speckit-specify with refinement", "Run /speckit-plan to adjust architecture", "Manually edit tasks.md to add coverage for 'performance-metrics'"
8. Offer Remediation
Ask the user: "Would you like me to suggest concrete remediation edits for the top N issues?" (Do NOT apply them automatically.)
9. Check for extension hooks
After reporting, check if .specify/extensions.yml exists in the project root.
- If it exists, read it and look for entries under the
hooks.after_analyzekey - If the YAML cannot be parsed or is invalid, do not skip silently: tell the user that
.specify/extensions.ymlcould not be read (include the parser error) and that no hooks were checked, including any mandatory (optional: false) hooks registered there, then continue normally - Filter out hooks where
enabledis explicitlyfalse. Treat hooks without anenabledfield as enabled by default. - For each remaining hook, do not attempt to interpret or evaluate hook
conditionexpressions:- If the hook has no
conditionfield, or it is null/empty, treat the hook as executable - If the hook defines a non-empty
condition, skip the hook and leave condition evaluation to the HookExecutor implementation
- If the hook has no
- When constructing command invocations from hook command names, replace dots (
.) with hyphens (-). For example,speckit.git.commit→/speckit-git-commit. - For each executable hook, output the following based on its
optionalflag:-
Optional hook (
optional: true):## Extension Hooks **Optional Hook**: {extension} Command: `/{command}` Description: {description} Prompt: {prompt} To execute: `/{command}` -
Mandatory hook (
optional: false):## Extension Hooks **Automatic Hook**: {extension} Executing: `/{command}` EXECUTE_COMMAND: {command}After emitting the block above you MUST actually invoke the hook and wait for it to finish before continuing. Run it the same way you would run the command yourself in this agent/session (the invocation may differ from the literal
{command}id shown above, e.g. a skills-mode agent runs it as/skill:speckit-...or$speckit-...). Emitting the block alone does not run the hook.
-
- If no hooks are registered or
.specify/extensions.ymldoes not exist, skip silently
Operating Principles
Context Efficiency
- Minimal high-signal tokens: Focus on actionable findings, not exhaustive documentation
- Progressive disclosure: Load artifacts incrementally; don't dump all content into analysis
- Token-efficient output: Limit findings table to 50 rows; summarize overflow
- Deterministic results: Rerunning without changes should produce consistent IDs and counts
Analysis Guidelines
- NEVER modify files (this is read-only analysis)
- NEVER hallucinate missing sections (if absent, report them accurately)
- Prioritize constitution violations (these are always CRITICAL)
- Use examples over exhaustive rules (cite specific instances, not generic patterns)
- Report zero issues gracefully (emit success report with coverage statistics)
Context
$ARGUMENTS
Related skills
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speckit-baseline
Generate feature specifications by analyzing existing source code.

speckit-checklist
Generate custom requirement-quality checklists for features based on user focus areas.

speckit-clarify
Identify and resolve ambiguities in feature specs with targeted clarification questions.

speckit-constitution
Create or update project governance documents from principle inputs.

speckit-implement
Execute implementation tasks from tasks.md in a spec-kit project structure.

speckit-plan
Execute implementation planning workflows to generate design artifacts from feature specifications.