@outcomeeng/spx

Developer CLI for code validation and session management.

What is spx?

spx is a command-line interface (CLI) tool that provides code validation and session management for projects that implement the spec-as-source methodology named Outcome Engineering. The spx CLI works hand-in-hand with the Claude Code and Codex plugin marketplace for Outcome Engineering.

The spx CLI orchestrates linting, type checking, circular dependency detection, markdown validation, literal reuse checks, and work handoffs between agent contexts.

Key Benefits

• Run the full quality gate through a single spx validation all command
• Queue, claim, and hand off work between agents with spx session
• Text and JSON output for CI and automation
• OIDC Trusted Publishing with Sigstore provenance via GitHub Actions

All commands are domain-scoped (e.g., spx validation, spx session) and support --quiet and --json flags for CI and automation.

Installation

npm install -g @outcomeeng/spx

From Source

git clone https://github.com/outcomeeng/spx.git
cd spx
pnpm install && pnpm run build
pnpm add -g .   # `pnpm link --global` was removed in pnpm 11
# first run on a machine: if `pnpm add -g .` fails with a global-bin-directory error,
# run `pnpm setup`, restart your shell, then re-run `pnpm add -g .`

Usage

Code Validation

# Full validation pipeline
spx validation all

# Individual checks
spx validation lint              # ESLint
spx validation lint --fix        # ESLint with auto-fix
spx validation typescript        # TypeScript type checking (alias: spx validation ts)
spx validation circular          # Circular dependency detection
spx validation knip              # Unused code detection
spx validation markdown          # Markdown link validation (alias: spx validation md)
spx validation literal           # Source/test literal reuse detection

# Scope and targeting
spx validation all --scope production        # Exclude tests/scripts
spx validation all --fix                     # Auto-fix across all checks
spx validation all src/session/              # Validate specific files or directories

All validation commands support --quiet for CI and --json for machine-readable output.

Session Management

Manage work sessions for agent handoffs and task queuing:

# Create a handoff session (JSON header at start of stdin, then body bytes verbatim)
printf '%s\n' \
  '{"priority":"high","goal":"Implement change X","next_step":"Run the focused validation","specs":[],"files":[]}' \
  '# Implement change X' \
  '' \
  'Body text — `#`, `---`, and code fences are literal because the body is not parsed.' \
  | spx session handoff

# List all sessions
spx session list

# List todo sessions only
spx session todo

# Claim the highest priority session
spx session pickup --auto

# Release one or more sessions back to the todo queue
spx session release [id...]

# Archive a session after adding a non-empty result field to its frontmatter
spx session archive <session-id>

# Show session content
spx session show <session-id>

# Remove old todo sessions (keeps 5 by default)
spx session prune [--keep <n>] [--dry-run]

# Delete a session
spx session delete <session-id>

Sessions are stored in .spx/sessions/ with priority-based ordering (high > medium > low) and FIFO within the same priority. Commands output parseable <PICKUP_ID>, <HANDOFF_ID>, and <SESSION_FILE> tags for automation.

Spec Management (deprecated)

The spx spec and spx spx CLI domains are deprecated. Spec tree management has moved to the spec-tree Claude Code plugin, available at outcomeeng/plugins. The plugin provides skills for understanding, authoring, decomposing, contextualizing, testing, refactoring, and aligning specification trees.

Development

Setup

git clone https://github.com/outcomeeng/spx.git
cd spx
pnpm install
pnpm run build
pnpm add -g .  # optional: makes 'spx' available in your shell (`pnpm link --global` was removed in pnpm 11)
# if `pnpm add -g .` fails with a global-bin-directory error, run `pnpm setup`, restart your shell, then re-run it

Build and Test

pnpm run build          # Build with tsup
pnpm run dev            # Build in watch mode
pnpm test               # Build, then run all tests
pnpm run test:watch     # Run tests in watch mode
pnpm run test:unit      # Unit tests only
pnpm run test:e2e       # Build, then run end-to-end tests
pnpm run test:coverage  # Tests with coverage

Validation (Required Before Commits)

pnpm run validate              # Source CLI: full validation pipeline, excluding circular checks
pnpm run validate:production   # Source CLI: production scope only, excluding circular checks
pnpm run lint                  # Source CLI: ESLint only
pnpm run lint:fix              # Source CLI: ESLint with auto-fix
pnpm run typecheck             # Source CLI: TypeScript only
pnpm run circular              # Source CLI: circular dependency detection
pnpm run circular:published    # Packaged executable circular dependency detection
pnpm run knip                  # Source CLI: unused code detection

The development validation scripts run tsx src/cli.ts, so they validate the current source tree. The packaged executable at bin/spx.js requires dist/cli.js; run pnpm run build before invoking it directly or through a global link.

Publish Validation

pnpm run publish:check        # Source validation, circular check, build, tests, packaged validation
pnpm run validate:published   # Packaged executable validation excluding circular checks; requires dist/cli.js

pnpm run publish:check is the required pre-publish gate. It runs source validation, source circular dependency detection, builds dist/, runs the test suite, and then runs packaged validation plus packaged circular dependency detection against the built executable.

Code Quality (SonarCloud)

SonarCloud analyzes the repository through server-side automatic analysis on every push to main and every pull request, so there is no analysis step in the GitHub Actions workflows. The .sonarcloud.properties file at the repository root is its only required artifact; it pins the Python analysis target for the single Python test fixture so analysis does not warn about defaulting to all Python 3 versions.

.mcp.json registers a SonarQube MCP server so agents can query the project's findings — quality gate, issues, coverage, duplication, and dependency risks. It complements the sonarqube@claude-plugins-official plugin enabled in .claude/settings.json: the plugin supplies the SonarQube skills (/sonar-quality-gate, /sonar-analyze, /sonar-coverage, /sonar-duplication, /sonar-dependency-risks), and this MCP server gives those skills and any MCP-aware agent access to the project's SonarCloud data — the two are complementary, not alternatives. To activate it, install the sonar CLI from SonarSource's official instructions onto PATH, ensure a container runtime (Docker, Podman, or Nerdctl) is running — sonar run mcp starts the server in a container — and authenticate to the outcomeeng SonarCloud organization:

sonar auth login -o outcomeeng   # opens a browser; the token is stored in the OS keychain

Until then the MCP server entry is inert: it does not affect builds, tests, or validation.

The local static-analysis gate is pnpm run validate, which includes the ESLint mirror of SonarQube findings. SonarQube Cloud automatic analysis still runs server-side on pushes and pull requests. Contributors with SonarQube Cloud plan access for local CLI analysis can set SPX_SONAR_CLI_ANALYZE=1; the Lefthook pre-push hook then runs sonar analyze --base origin/main and blocks the push on findings.

CI/CD

The project uses GitHub Actions for continuous integration and publishing:

• deterministic-verification.yml — Runs the deterministic verification suite (validation, circular dependencies, tests with the status projection, and packaged-CLI checks) as parallel jobs on Node 24 for every push to main and every pull request, skipping root instruction docs. Includes dependency review on pull requests to block PRs introducing vulnerable dependencies.
• agentic-verification.yml — Runs agentic verification (audit and review) over each pull request.
• publish.yml — Triggered by v* tags. Gates on deterministic-verification.yml and publishes its verified build via OIDC Trusted Publishing (no stored npm tokens) with Sigstore provenance attestation. Requires manual approval via the npm-publish GitHub Environment.
• scorecard.yml — Weekly OpenSSF Scorecard assessment, results published to the GitHub Security tab.

Publishing a Release

1. Sync main with origin/main: git pull --ff-only origin main
2. Bump the version with pnpm version patch --no-git-tag-version, unless the release request specifies minor, major, or an exact version
3. Run pnpm run publish:check
4. Commit and tag: git add package.json git commit -m "build(release): bump version to X.Y.Z" git tag vX.Y.Z
5. Push: git push origin main && git push origin vX.Y.Z
6. Approve the deployment in the GitHub Actions npm-publish environment
7. Confirm the published version and provenance:

npm view @outcomeeng/spx version
npm audit signatures

8. Refresh the operator-visible CLI from the release tag in the main worktree and confirm it reports the released version:

git fetch --tags origin
git switch --detach vX.Y.Z
pnpm run build
spx --version
git switch main
git pull --ff-only origin main

Do not refresh the CLI with pnpm install, global pnpm add -g, or package manager update commands during release close-out. The operator-visible binary comes from the release tag after the main worktree checks out that tag and rebuilds it; return the worktree to current main after the version check.

Technical Stack

• TypeScript — type-safe implementation (ESM)
• Commander.js — CLI framework
• Vitest — testing framework
• tsup — build tool (esbuild-based)
• ESLint 9 — linting with flat config
• GitHub Actions — CI/CD with OIDC Trusted Publishing

Architecture

src/
├── commands/      # CLI command implementations
│   ├── session/     # spx session subcommands
│   ├── validation/  # spx validation subcommands
│   └── spec/        # spx spec subcommands (deprecated)
├── domains/       # Domain routers
├── validation/    # Lint, typecheck, circular dep logic
├── session/       # Session lifecycle and storage
├── config/        # Configuration loading
├── git/           # Git integration utilities
├── scanner/       # Directory walking, pattern matching
├── status/        # Status state machine
├── reporter/      # Output formatting
├── tree/          # Hierarchical tree building
├── precommit/     # Pre-commit hook orchestration
└── lib/           # Shared utilities

License

MIT