SpecGov

Spec governance for Git repositories. Keep code, docs, ADRs, requirements, and spec folders aligned in every pull request.

SpecGov is a deterministic CLI and GitHub Action for teams that use specs as engineering contracts. It maps implementation paths to the source-of-truth artifacts that explain them, then reports when code changes bypass those artifacts.

It is not another spec framework. SpecGov works with the files you already have: product requirements, ADRs, design docs, .specs folders, Kiro specs, Spec Kit plans, and custom Markdown contracts.

• Framework agnostic: Bring any spec convention and describe it in one .specgov.yml manifest.
• PR native: Run locally or as a GitHub Action during review.
• Advisory first: Start with warnings, then move trusted areas to strict enforcement.
• Audit friendly: Emit Markdown for humans and JSON for automation.
• Private by default: No hosted service, API key, model call, telemetry, or repository upload.

Contents

• Why SpecGov exists
• How it works
• Core capabilities
• Installation
• Quick start
• Manifest
• Commands
• GitHub Action
• Adoption recipes
• Report example
• Enterprise-friendly defaults
• How SpecGov differs from SpecTrace
• Development
• Security and privacy
• Project status

Why SpecGov exists

Spec-driven development breaks down when Git accepts code-only pull requests for behavior that was supposed to be governed by requirements, ADRs, product docs, or design plans. The result is familiar:

• requirements become stale after the implementation moves on;
• ADRs lose authority because reviewers cannot see when they were bypassed;
• AI-assisted changes become hard to audit after the conversation is gone;
• teams adopt multiple spec formats, then lose one shared governance layer;
• compliance and platform teams need traceability without a heavyweight tool.

SpecGov gives repositories a small contract:

1. Declare the artifacts that define expected behavior.
2. Map code paths to the artifacts that must move with them.
3. Check pull requests for missing spec impact.
4. Generate trace and drift reports that humans and automation can inspect.

How it works

flowchart LR
    artifacts["Docs, ADRs, specs, and plans"]
    manifest[".specgov.yml"]
    changes["Changed code paths"]
    specgov["SpecGov CLI or Action"]
    report["Markdown or JSON report"]
    review["Reviewers and CI"]

    artifacts --> specgov
    manifest --> specgov
    changes --> specgov
    specgov --> report
    report --> review

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SpecGov does not parse your business logic or invent a new workflow. It reads your manifest, discovers governed artifacts, compares changed files with your declared mappings, and reports whether the review has enough spec context.

Core capabilities

Capability	What it gives you
Artifact discovery	Finds governed docs, ADRs, specs, and requirements by glob.
Lifecycle metadata	Reads optional status, owner, and verification metadata.
PR impact checks	Flags code changes that skip mapped spec artifacts.
Unmapped code detection	Finds changed files outside your declared governance map.
Trace index	Emits JSON linking artifacts, mappings, and matched files.
Drift report	Reports stale, empty, orphaned, or superseded artifacts.
GitHub Action	Runs the same deterministic checks inside pull requests.
Advisory/strict modes	Lets teams observe first, then block trusted paths later.

Installation

Install the CLI from npm:

npm install -g specgov

You can also run it without a global install:

npx specgov --help

After installation, the specgov command is available on your machine:

specgov --help

Quick start

From the repository you want to govern:

specgov init
specgov scan
specgov check-pr --changed-file src/auth/session.ts
specgov trace --out .specgov.trace.json
specgov drift

Start in advisory mode so contributors can see findings without blocking merges. Move selected repositories or paths to strict after the mapping has earned trust in real pull requests.

Manifest

SpecGov is configured with one YAML file:

version: 1
mode: advisory

artifacts:
  - path: "docs/**/*.md"
    kind: documentation
    owner: docs
  - path: "adr/**/*.md"
    kind: decision
    owner: architecture
  - path: ".specs/**/*.md"
    kind: specification
    owner: engineering

mappings:
  - code: "src/auth/**"
    specs:
      - "docs/auth/**"
      - "adr/auth/**"
      - ".specs/features/auth/**"
    description: Authentication behavior must stay aligned with its specs.

rules:
  require_spec_impact_for_code_changes: true
  require_lifecycle_status: false
  require_owner_for_active_specs: false
  stale_after_days: 180

ignore:
  - "node_modules/**"
  - "dist/**"
  - ".git/**"

Governed artifacts

Each artifacts entry tells SpecGov which files belong to your spec layer. Use the folder convention your team already has:

• docs/**/*.md for product or engineering docs.
• adr/**/*.md for architectural decisions.
• .specs/**/*.md for TLC Spec Driven or custom specs.
• .kiro/specs/**/*.md for Kiro-style spec folders.
• specs/**/*.md for Spec Kit or repository-local plans.

Code-to-spec mappings

Each mappings entry connects implementation paths to the artifacts that must move with them. If src/auth/** changes and no mapped artifact changes, SpecGov reports SPEC_IMPACT_MISSING.

When require_spec_impact_for_code_changes is enabled, SpecGov also reports CODE_CHANGE_UNMAPPED for changed files that are not covered by any mapping, are not governed artifacts, and are not ignored.

Lifecycle frontmatter

Governed Markdown files can include optional lifecycle metadata:

---
status: active
owner: platform
last_verified: 2026-06-27
---

# Authentication session contract

Supported statuses are draft, active, superseded, deprecated, and archived. Superseded artifacts can declare superseded_by so readers know where the current source of truth moved.

Commands

Command	Purpose	Common use
specgov init	Create a starter .specgov.yml.	First-time setup.
specgov scan	Discover governed artifacts and lifecycle findings.	Local audit.
specgov check-pr	Compare changed files against code-to-spec mappings.	Pull request checks.
specgov trace	Generate a machine-readable trace index.	Automation and audits.
specgov drift	Report stale, empty, orphaned, or superseded specs.	Maintenance reviews.

All report commands default to Markdown output. Use --format json when another tool needs to consume the result:

specgov scan --format json
specgov check-pr --format json --changed-file src/payments/checkout.ts

Exit codes:

• 0: pass, or warnings in advisory mode.
• 1: governance failure in strict mode.
• 2: runtime or configuration error.

GitHub Action

Run SpecGov on pull requests:

name: SpecGov

on:
  pull_request:

jobs:
  specgov:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
        with:
          fetch-depth: 0

      - uses: paladini/specgov@v0.1.0
        with:
          mode: advisory
          base-ref: ${{ github.event.pull_request.base.sha }}
          head-ref: ${{ github.event.pull_request.head.sha }}

Pin the Action to a version tag for repeatable CI behavior.

Use mode: strict when governance findings should block the pull request.

Action inputs

Input	Default	Description
config	.specgov.yml	Path to the manifest.
mode	advisory	advisory reports warnings; strict fails on warnings.
base-ref	unset	Base git ref for pull request comparison.
head-ref	unset	Head git ref for pull request comparison.
output-format	markdown	Report format for logs and report-json.
changed-files	unset	Newline-delimited file list when you provide the diff.

Action outputs

Output	Description
status	pass, warn, fail, or error.
report-json	Serialized SpecGovReport for downstream jobs.

Adoption recipes

The examples/ folder includes starter manifests for common repository shapes:

Repository style	Example
Docs-only	examples/docs-only/.specgov.yml
ADR-heavy	examples/adr-heavy/.specgov.yml
Framework folders	examples/framework-folders/.specgov.yml

A practical rollout usually looks like this:

1. Run specgov init.
2. Add one or two high-value mappings, not the whole repository.
3. Run specgov scan and fix obvious empty globs.
4. Add the GitHub Action in advisory mode.
5. Review warnings in a few pull requests.
6. Tighten high-confidence areas with mode: strict.
7. Schedule specgov drift as a periodic maintenance check.

Report example

# SpecGov check-pr report

Status: **warn**
Mode: `advisory`
Findings: 1 (0 errors, 1 warnings, 0 info)

## Changed Files

- `src/auth/session.ts`

## Findings

- **WARNING SPEC_IMPACT_MISSING**: Code changed under src/auth/** without a
  related spec artifact change.
  - Related: `src/auth/session.ts`, `docs/auth/**`, `adr/auth/**`
  - Suggestion: Update a mapped spec artifact or run in advisory mode until
    this mapping is ready to enforce.

Enterprise-friendly defaults

SpecGov is small, but its defaults are designed for serious engineering teams:

• No data leaves your runner. SpecGov reads local files and git metadata.
• No vendor workflow lock-in. The manifest points to any docs, ADRs, or spec folders your organization already uses.
• No all-at-once migration. Advisory mode lets teams learn before enforcement.
• Machine-readable outputs. JSON reports can feed dashboards, policy jobs, or release evidence.
• Review-first governance. Findings appear where engineers already make decisions: pull requests and local checks.

How SpecGov differs from SpecTrace

SpecTrace for AI Coding verifies whether a specific AI-assisted change satisfies explicit requirements and evidence maps. SpecGov operates one layer higher: it governs living spec artifacts across Git workflows regardless of author, framework, or whether AI was involved.

They work well together:

• Use SpecGov to keep the repository's source-of-truth artifacts aligned.
• Use SpecTrace to audit the evidence behind a specific implementation change.

Development

npm ci
npm test
npm run build
npm run lint
npm run typecheck
npm run format:check

SpecGov uses TLC Spec Driven internally. Public behavior changes should update the relevant files under .specs/, tests, and README examples in the same pull request.

Security and privacy

SpecGov runs locally or in your CI runner. Version 0.1 does not call external services, require API keys, or send repository contents to a model.

See SECURITY.md for vulnerability reporting.

Project status

SpecGov is in pre-release development. The CLI, report shape, and Action inputs are usable today, but may still change before the first tagged release.

Current project links:

• Website: https://paladini.github.io/specgov/
• npm: https://www.npmjs.com/package/specgov
• Repository: https://github.com/paladini/specgov
• Roadmap: .specs/project/ROADMAP.md
• Release process: RELEASING.md
• Contribution guide: CONTRIBUTING.md