</> Delimit\n\nStop re-explaining your codebase every session. Memory, tasks, and governance that persist across Claude Code, Codex, Cursor, and Gemini CLI.\n\n

Think and Build

The universal command for the Delimit Swarm. When you say "Think and Build", your AI agents (Claude, Codex, Gemini, Cursor) automatically deploy a background autonomous build loop that monitors your ledger, deliberates on strategy, and implements code while you focus on the architecture.

• "Think": Trigger multi-model deliberation and strategic dispatch.
• "Build": Activate the background daemon to execute tasks and verify gates.
• "Vault": Manage local secrets and API keys (AES-256 encrypted).

Works across any configuration — from a single model on a budget to an enterprise swarm of 4+ models. \n\n\n\n\n\n\n

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• 176 MCP tools -- governance, context, shipping, observability, orchestration, and swarm\n\n---\n\n## GitHub Action\n\nZero-config -- auto-detects your OpenAPI spec:\n\nyaml\n- uses: delimit-ai/delimit-action@v1\n\n\nOr with full configuration:\n\nyaml\nname: API Contract Check\non: pull_request\n\njobs:\n delimit:\n runs-on: ubuntu-latest\n permissions:\n pull-requests: write\n steps:\n - uses: actions/checkout@v4\n with:\n fetch-depth: 0\n - uses: delimit-ai/delimit-action@v1\n with:\n spec: api/openapi.yaml\n\n\nThat's it. Delimit auto-fetches the base branch spec, diffs it, and posts a PR comment with breaking changes, semver classification, migration guides, and governance gate results.\n\nView on GitHub Marketplace | See a live demo (23 breaking changes)\n\n### Example PR comment\n\n> Breaking Changes Detected\n>\n> | Change | Path | Severity |\n> |--------|------|----------|\n> | endpoint_removed | DELETE /pets/{petId} | error |\n> | type_changed | /pets:GET:200[].id (string -> integer) | warning |\n> | enum_value_removed | /pets:GET:200[].status | warning |\n>\n> Semver: MAJOR (1.0.0 -> 2.0.0)\n>\n> Migration Guide: 3 steps to update your integration\n>\n> ### Governance Gates\n> | Gate | Status | Chain |\n> |------|--------|-------|\n> | API Lint | Pass/Fail | lint -> semver -> gov_evaluate |\n> | Policy Compliance | Pass/Fail | policy -> evidence_collect |\n> | Security Audit | Pass | security_audit -> evidence_collect |\n> | Deploy Readiness | Ready/Blocked | deploy_plan -> security_audit |\n\n---\n\n## CLI commands\n\nbash\nnpx delimit-cli quickstart # Clone demo project + guided walkthrough\nnpx delimit-cli try # Zero-risk demo — saves governance report\nnpx delimit-cli demo # Self-contained governance demo\nnpx delimit-cli init # Guided wizard with compliance templates\nnpx delimit-cli init --preset strict # Initialize with strict policy\nnpx delimit-cli setup # Install into all AI assistants\nnpx delimit-cli setup --dry-run # Preview changes first\nnpx delimit-cli lint api/openapi.yaml # Check for breaking changes\nnpx delimit-cli diff old.yaml new.yaml # Compare two specs\nnpx delimit-cli explain old.yaml new.yaml # Generate migration guide\nnpx delimit-cli doctor # Check setup health\nnpx delimit-cli uninstall --dry-run # Preview removal\n\n\n### What the MCP toolkit adds\n\nWhen installed into your AI coding assistant, Delimit provides tools across two tiers:\n\n#### Free (no account needed)\n\n- API governance -- lint, diff, policy enforcement, semver classification\n- Persistent ledger -- track tasks across sessions, shared between all AI assistants\n- Zero-spec extraction -- generate OpenAPI specs from FastAPI, Express, or NestJS source\n- Project scan -- auto-detect specs, frameworks, security issues, and tests\n- Quickstart -- guided first-run that proves value in 60 seconds\n\n#### Pro\n\n- Multi-model deliberation -- AI models debate until they agree (free: Gemini Flash + GPT-4o-mini; BYOK: any models)\n- Security audit -- dependency scanning, secret detection, SAST analysis\n- Test verification -- confirms tests ran, measures coverage, generates new tests\n- Memory & vault -- persistent context and encrypted secrets across sessions\n- Evidence collection -- governance audit trail for compliance\n- Deploy pipeline -- governed build, publish, and rollback\n- OS layer -- agent identity, execution plans, approval gates\n\n---\n\n## What It Detects\n\n27 change types (17 breaking, 10 non-breaking) -- deterministic rules, not AI inference. Same input always produces the same result.\n\n### Breaking Changes\n\n| # | Change Type | Example |\n|---|-------------|---------|\n| 1 | endpoint_removed | DELETE /users/{id} removed entirely |\n| 2 | method_removed | PATCH /orders no longer exists |\n| 3 | required_param_added | New required header on GET /items |\n| 4 | param_removed | sort query parameter removed |\n| 5 | response_removed | 200 OK response dropped |\n| 6 | required_field_added | Request body now requires tenant_id |\n| 7 | field_removed | email dropped from response object |\n| 8 | type_changed | id went from string to integer |\n| 9 | format_changed | date-time changed to date |\n| 10 | enum_value_removed | status: "pending" no longer valid |\n| 11 | param_type_changed | Query param limit changed from integer to string |\n| 12 | param_required_changed | filter param became required |\n| 13 | response_type_changed | Response data changed from array to object |\n| 14 | security_removed | OAuth2 security scheme removed |\n| 15 | security_scope_removed | write:pets scope removed from OAuth2 |\n| 16 | max_length_decreased | name maxLength reduced from 255 to 100 |\n| 17 | min_length_increased | code minLength increased from 1 to 5 |\n\n### Non-Breaking Changes\n\n| # | Change Type | Example |\n|---|-------------|---------|\n| 18 | endpoint_added | New POST /webhooks endpoint |\n| 19 | method_added | PATCH /users/{id} method added |\n| 20 | optional_param_added | Optional format query param added |\n| 21 | response_added | 201 Created response added |\n| 22 | optional_field_added | Optional nickname field added to response |\n| 23 | enum_value_added | status: "archived" value added |\n| 24 | description_changed | Updated description for /health endpoint |\n| 25 | security_added | API key security scheme added |\n| 26 | deprecated_added | GET /v1/users marked as deprecated |\n| 27 | default_changed | Default value for page_size changed from 10 to 20 |\n\n---\n\n## Policy presets\n\nbash\nnpx delimit-cli init --preset strict # All violations are errors\nnpx delimit-cli init --preset default # Balanced (default)\nnpx delimit-cli init --preset relaxed # All violations are warnings\n\n\nOr write custom rules in .delimit/policies.yml:\n\nyaml\nrules:\n - id: freeze_v1\n name: Freeze V1 API\n change_types: [endpoint_removed, method_removed, field_removed]\n severity: error\n action: forbid\n conditions:\n path_pattern: "^/v1/.*"\n message: "V1 API is frozen. Changes must be made in V2."\n\n\n---\n\n## Supported formats\n\n- OpenAPI 3.0 and 3.1\n- Swagger 2.0\n- YAML and JSON\n\n---\n\n## Links\n\n- delimit.ai -- homepage\n- Dashboard -- governance console\n- Docs -- full documentation\n- GitHub Action -- Marketplace listing\n- Quickstart -- try it in 2 minutes\n- npm -- CLI package\n- Pricing -- free tier + Pro\n\nMIT License