Agent skill

Speckit Converge

by kunstmusik in kunstmusik/blue

Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.

GPL-3.0Auto-check passedDevelopment

Install Speckit Converge

skills CLI
$ npx skills add kunstmusik/blue --skill speckit-converge -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install kunstmusik/blue speckit-converge --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/kunstmusik/blue.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/speckit-converge .claude/skills/speckit-converge && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
speckit-converge
GitHub stars
154
Used in
9 other repos
Token cost
~3.3k tokens
SKILL.md length
1,659 words
Files
1
Skills in repo
16
Repo updated
First seen
Licence
GPL-3.0

At a glance

Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.

  • Works in 9 steps: Initialize Convergence Context → Load Artifacts (Progressive Disclosure) → Build the Intent Inventory → …
  • Tasks that involve Spec-driven development
  • SKILL.md covers User Input, Pre-Execution Checks, Goal and Operating Constraints, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Speckit Converge is an agent skill from kunstmusik/blue. Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.

Its SKILL.md is about 3.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Requires spec-kit project structure with .specify/ directory

It sits in Development, covering Spec-driven development. The repository describes itself as: Blue - An Integrated Music Environment. The licence is GPL-3.0.

When your agent uses it

  • Tasks that involve Spec-driven development

Example prompts

  • “/speckit-converge”

Requirements

  • Compatibility (from SKILL.md): Requires spec-kit project structure with .specify/ directory

Workflow steps

9 steps, taken from the step headings in SKILL.md.

  1. Initialize Convergence Context
  2. Load Artifacts (Progressive Disclosure)
  3. Build the Intent Inventory
  4. Assess the Codebase and Classify Findings
  5. Assign Severity
  6. Present the In-Session Findings Summary
  7. Append Convergence Tasks (or report converged)
  8. Provide Next Actions (Handoff)
  9. Check for extension hooks

What it can do on your machine

Read from SKILL.md and the folder at commit 3c32d58. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Requires spec-kit project structure with .specify/ directory

    From compatibility in the SKILL.md frontmatter.

Context cost

Speckit Converge loads about 3.3k tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 1,659 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~3.3k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from kunstmusik/blue at commit 3c32d58, republished under its GPL-3.0 licence (© kunstmusik). 1,659 words, ~3,252 tokens.

Download SKILL.mdSave it as .claude/skills/speckit-converge/SKILL.md (or your agent's skills folder).
name
speckit-converge
description
Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it.
compatibility
Requires spec-kit project structure with .specify/ directory
metadata.author
github-spec-kit
metadata.source
templates/commands/converge.md

User Input

text
$ARGUMENTS

You MUST consider the user input before proceeding (if not empty).

Pre-Execution Checks

Check for extension hooks (before convergence):

  • Check if .specify/extensions.yml exists in the project root.

  • If it exists, read it and look for entries under the hooks.before_converge key

  • If the YAML cannot be parsed or is invalid, do not skip silently: tell the user that .specify/extensions.yml could 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 enabled is explicitly false. Treat hooks without an enabled field as enabled by default.

  • For each remaining hook, do not attempt to interpret or evaluate hook condition expressions:

    • If the hook has no condition field, 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
  • 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 optional flag:

    • Optional hook (optional: true):

      text
      ## Extension Hooks
      
      **Optional Pre-Hook**: {extension}
      Command: `/{command}`
      Description: {description}
      
      Prompt: {prompt}
      To execute: `/{command}`
    • Mandatory hook (optional: false):

      text
      ## 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.yml does not exist, skip silently

Goal

Close the gap between what a feature's specification, plan, and tasks call for and what the codebase currently implements. Read spec.md, plan.md, and tasks.md as the sole source of intent (with the constitution as governing constraints), assess the current state of the code, determine which requirements, acceptance criteria, plan decisions, and existing tasks are unmet, incomplete, or only partially satisfied, and append each piece of remaining work as a new, traceable task at the bottom of tasks.md so that $speckit-implement can complete it. This command MUST run only after $speckit-implement has run on the current tasks.md, and after $speckit-tasks has produced a complete tasks.md.

This is not a diff tool and does not track changes. It assesses the present state of the code relative to the feature's artifacts — no git, no branch comparison, no history.

Operating Constraints

APPEND-ONLY, NEVER REWRITE: The command's only write is appending a new ## Phase N: Convergence section to tasks.md. It MUST NOT:

  • modify spec.md or plan.md in any way;
  • rewrite, renumber, reorder, or delete any existing task (including tasks from a prior Convergence phase);
  • modify, create, or delete any application code — completing the appended tasks is the job of $speckit-implement.

When the codebase already satisfies everything, the command MUST leave tasks.md byte-for-byte unchanged (no empty Convergence header) and report a clean result.

Constitution Authority: The project constitution (.specify/memory/constitution.md) is non-negotiable. Code that violates a MUST principle is the highest-severity finding and produces a corresponding remediation task. If the constitution is an unfilled template, skip constitution checks gracefully rather than failing.

Execution Steps

1. Initialize Convergence 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
  • CONSTITUTION = .specify/memory/constitution.md (if present) If spec.md, plan.md, or tasks.md is missing, STOP with a clear, actionable message naming the prerequisite command to run ($speckit-specify for a missing spec, $speckit-plan for a missing plan, $speckit-tasks for missing tasks). Do not produce partial output. 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:

  • Functional Requirements (FR-###)
  • Success Criteria (SC-###) — include only items requiring buildable work; exclude post-launch outcome metrics and business KPIs
  • User Stories and their Acceptance Scenarios
  • Edge Cases (if present)

From plan.md:

  • Architecture/stack choices and technical decisions
  • Data Model references
  • Phases and named touch-points (files/components the plan says will be created or edited)
  • Technical constraints

From tasks.md:

  • Task IDs (to compute the next ID and next phase number)
  • Descriptions, phase grouping, and referenced file paths

From constitution (if not an unfilled template):

  • Principle names and MUST/SHOULD normative statements
3. Build the Intent Inventory

Create an internal model (do not echo raw artifacts):

  • Requirements inventory: one stable key per FR-### / SC-### / user-story acceptance scenario (e.g. US1/AC2), plus the plan decisions and constitution principles that impose buildable obligations.
  • Code-scope map: from the file paths named in plan.md and tasks.md, plus a keyword search for the concepts each requirement describes, derive the set of source files and components in scope for assessment. Bound the assessment to these — do not infer scope beyond what the artifacts define.
4. Assess the Codebase and Classify Findings

For each item in the intent inventory, inspect the current code in scope and produce a Finding only where there is a gap. Classify every finding by gap type:

  • missing: the required work is absent from the code entirely.
  • partial: the work exists but does not yet fully satisfy the requirement / acceptance criterion / plan decision.
  • contradicts: the code does something that conflicts with stated intent or a constitution MUST principle.
  • unrequested: the code contains work not called for by the spec, plan, or tasks (surfaced for awareness — converge does not delete code, it only appends a task to review/justify or remove it).

Each Finding records: a stable id, the source-ref it traces to, the gap-type, a severity, and a short human-readable description with the evidence (the file/area observed).

Edge cases:

  • Little or no code yet: treat the entire specified scope as missing remaining work rather than failing.
  • Nothing remains: produce zero findings and follow the converged branch in Step 7.
Show full SKILL.md (661 more words)Show less
5. Assign Severity
  • CRITICAL: violates a constitution MUST principle, or a missing/contradicts gap that blocks baseline functionality of a P1 user story.
  • HIGH: a missing or partial gap on a core functional requirement or acceptance criterion.
  • MEDIUM: a partial gap on a secondary requirement, or an unrequested addition with unclear justification.
  • LOW: minor partial gaps, polish, or low-risk unrequested additions.
6. Present the In-Session Findings Summary

Before appending anything, output a compact, severity-graded summary (no file writes yet):

Convergence Findings

IDGap TypeSeveritySourceEvidenceRemaining Work
F1missingHIGHFR-008Example: no append-only guard detected in path/to/module.py when writing tasks.mdAdd append-only enforcement

Summary metrics:

  • Requirements / acceptance criteria checked
  • Plan decisions checked
  • Constitution principles checked (or "skipped — template")
  • Findings by gap type (missing / partial / contradicts / unrequested)
  • Findings by severity
7. Append Convergence Tasks (or report converged)

If there are one or more actionable findings (tasks_appended outcome):

Append to the end of tasks.md, per the append contract:

  1. Scan all existing task IDs; let M be the maximum. Determine the next phase number N (highest existing phase + 1).

  2. Write a single new section header ## Phase N: Convergence.

  3. Emit one checklist item per actionable finding, ordered CRITICAL/HIGH first, assigning zero-padded IDs T{M+1:03d}, T{M+2:03d}, …:

    markdown
    - [ ] T042 <imperative description> per <source-ref> (<gap-type>)

    <source-ref> traces the task to its origin: e.g. FR-003, SC-002, US1/AC2, plan: storage decision, Constitution II.

    <gap-type> is one of missing, partial, contradicts, unrequested.

    Constitution-violation tasks MUST be emitted first and described as CRITICAL.

  4. Never reuse or renumber existing IDs. If a prior Convergence phase exists, add a new, separately-numbered one below it — do not touch the old one.

If there are no actionable findings (converged outcome):

  • Do not modify tasks.md at all — no empty phase header.
  • Report: "✅ Converged — the implementation satisfies the spec, plan, and tasks."
  • Include the summary counts of what was checked.
8. Provide Next Actions (Handoff)
  • On tasks_appended: state how many tasks were appended under which phase, and recommend running $speckit-implement to complete them; note that a follow-up converge run will find fewer or no remaining items.
  • On converged: recommend proceeding to review / opening a PR. No further implement pass is needed for this feature's specified scope.
9. Check for extension hooks

After producing the result, check if .specify/extensions.yml exists in the project root.

  • If it exists, read it and look for entries under the hooks.after_converge key

  • If the YAML cannot be parsed or is invalid, do not skip silently: tell the user that .specify/extensions.yml could 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 enabled is explicitly false. Treat hooks without an enabled field as enabled by default.

  • For each remaining hook, do not attempt to interpret or evaluate hook condition expressions:

    • If the hook has no condition field, 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
  • Report the convergence outcome (converged or tasks_appended) in-session before listing any hooks, so users can decide whether to run optional follow-up commands.

  • 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 optional flag:

    • Optional hook (optional: true):

      text
      ## Extension Hooks
      
      **Optional Hook**: {extension}
      Command: `/{command}`
      Description: {description}
      
      Prompt: {prompt}
      To execute: `/{command}`
    • Mandatory hook (optional: false):

      text
      ## 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.yml does not exist, skip silently

© kunstmusik, GPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/speckit-converge of kunstmusik/blue.

Open the folder on GitHubat commit 3c32d58

Used in 9 other repositories

We found 10 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 9 other GitHub owners. This page covers the copy in kunstmusik/blue, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Speckit Converge next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Speckit Converge compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Speckit Converge this skillkunstmusik/blue1549 repos~3.3kAutomated safety check: PassGPL-3.0
OpenSpec Bulk Change ArchiverFission-AI/OpenSpec72k2 repos~5.6kAutomated safety check: PassMIT
Speckit ConstitutionWeihanLi/WeihanLi.Common24212 repos~2.1kAutomated safety check: PassApache-2.0
Review Spdzhu1090093659/spec_driven_develop987—~1.5kAutomated safety check: PassMIT
React Router RFC Implementerremix-run/react-router57k—~2.3kAutomated safety check: PassMIT
Ss SpecSerial-Studio/Serial-Studio7.2k—~766Automated safety check: PassCustom licence

Similar skills

  • Archives several completed OpenSpec changes in one operation, checking the codebase to resolve spec conflicts rather than archiving blindly.

    72k GitHub starsUsed in 2 repos~5.6k tokens
    DevelopmentAuto-check passed
  • Speckit Constitution

    WeihanLi/WeihanLi.Common

    Create or update the project constitution from interactive or provided principle inputs, ensuring all dependent templates stay in sync.

    242 GitHub starsUsed in 12 repos~2.1k tokens
    DevelopmentAuto-check passed
  • Review Spd

    zhu1090093659/spec_driven_develop

    Findings-first code review workflow for AI coding agents. An agent skill from zhu1090093659/spec_driven_develop.

    987 GitHub stars~1.5k tokensUpdated 2 mo ago
    DevelopmentAuto-check passed
  • React Router RFC Implementer

    remix-run/react-router

    Turns a React Router RFC discussion on GitHub into an implementation, weighing community feedback and settling open questions with you before coding.

    57k GitHub stars~2.3k tokensUpdated yesterday
    DevelopmentAuto-check passed
  • Ss Spec

    Serial-Studio/Serial-Studio

    Phase 1 of Serial Studio's spec-driven workflow: capture WHAT a feature must do and WHY, with no implementation detail.

    7.2k GitHub stars~766 tokensUpdated 2 days ago
    DevelopmentAuto-check passed
  • BiSheng SDD Document Review

    dataelement/bisheng

    Reviews BiSheng spec, design and tasks documents with checklists for PRD gaps, handover readiness and acceptance traceability, producing a report or an LGTM.

    12k GitHub stars~717 tokensUpdated yesterday
    DevelopmentAuto-check passed

More from kunstmusik/blue

All 16 skills in this repo
  • Speckit Plan

    kunstmusik/blue

    Execute the implementation planning workflow using the plan template to generate design artifacts.

    154 GitHub starsUsed in 19 repos~2.1k tokens
    Auto-check passed
  • Speckit Specify

    kunstmusik/blue

    Create or update the feature specification from a natural language feature description.

    154 GitHub starsUsed in 19 repos~4.7k tokens
    Auto-check passed
  • Speckit Tasks

    kunstmusik/blue

    Generate an actionable, dependency-ordered tasks.md for the feature based on available design artifacts.

    154 GitHub starsUsed in 19 repos~3k tokens
    Auto-check passed
  • Speckit Analyze

    kunstmusik/blue

    Perform a non-destructive cross-artifact consistency and quality analysis across spec.md, plan.md, and tasks.md after task generation.

    154 GitHub starsUsed in 18 repos~3k tokens
    Auto-check passed
  • Karpathy Coder

    kunstmusik/blue

    A skill your agent uses when writing, reviewing, or committing code to enforce Karpathy's 4 coding principles — surface assumptions before coding, keep it simple, make surgical changes, define…

    154 GitHub starsUsed in 1 repo~1.4k tokens
    Auto-check passed
  • Speckit Clarify

    kunstmusik/blue

    Identify underspecified areas in the current feature spec by asking up to 5 highly targeted clarification questions and encoding answers back into the spec.

    154 GitHub starsUsed in 18 repos~4.9k tokens
    Auto-check passed

Categories

Questions about Speckit Converge

What does Speckit Converge do?

Assess the current codebase against the feature's spec, plan, and tasks, then append any remaining unbuilt work as new tasks to tasks.md so implement can complete it. Speckit Converge is an agent skill from kunstmusik/blue.md so implement can complete it.

When should I use Speckit Converge?

Speckit Converge fits situations like: tasks that involve Spec-driven development.

How do I install Speckit Converge in Claude Code?

Run `npx skills add kunstmusik/blue --skill speckit-converge -a claude-code`. Or copy the skill folder (.agents/skills/speckit-converge in kunstmusik/blue) into .claude/skills/speckit-converge in your project. Claude Code loads it when a task matches its description.

How do I install Speckit Converge in Codex?

Run `npx skills add kunstmusik/blue --skill speckit-converge -a codex`. Or copy the skill folder (.agents/skills/speckit-converge in kunstmusik/blue) into .agents/skills/speckit-converge in your project. Codex loads it when a task matches its description.

Can I use Speckit Converge in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add kunstmusik/blue --skill speckit-converge -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/speckit-converge, .gemini/skills/speckit-converge, .github/skills/speckit-converge and .opencode/skills/speckit-converge in your project.

What does Speckit Converge need to run?

SKILL.md names no scripts, command-line tools or credentials: Speckit Converge is instructions for the agent only. Compatibility (from SKILL.md): Requires spec-kit project structure with .specify/ directory.

Does Speckit Converge access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Speckit Converge safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Speckit Converge use?

Speckit Converge is published under the GPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Speckit Converge use?

About 3.3k tokens (SKILL.md is roughly 13k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Speckit Converge?

Skills that share tags, products or a category with Speckit Converge: OpenSpec Bulk Change Archiver (Fission-AI/OpenSpec, 72k stars), Speckit Constitution (WeihanLi/WeihanLi.Common, 242 stars), Review Spd (zhu1090093659/spec_driven_develop, 987 stars) and React Router RFC Implementer (remix-run/react-router, 57k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Speckit Converge?

kunstmusik (a GitHub user) maintains it in kunstmusik/blue, which has 154 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on October 8, 2026.

Source: kunstmusik/blue on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.