CDT  

CDT is an agent-first release automation CLI built around project-local YAML pipelines, safe preflight checks, and reusable steps for mobile, web, and custom deployments. Direct human operation remains a first-class workflow.

CDT includes built-in steps for Flutter, native iOS/Xcode, Android, web, Firebase/AppTester, TestFlight, Python hooks, and custom steps via its SDK.

Installation

CDT is published as the cdt-release Python distribution and installs the cdt command. pipx is the recommended installation method:

pipx install cdt-release

A specific GitHub release can also be installed directly:

pipx install "git+https://github.com/Sergionius/cdt.git@v0.5.1"

Upgrade or reinstall:

cdt self-update --check
cdt self-update --manager pipx
cdt self-update --dry-run  # preview the release tag and command without running it

Or manually:

pipx uninstall cdt-release
pipx install cdt-release

For local development:

git clone https://github.com/Sergionius/cdt.git
cd cdt
python -m pip install -e '.[dev]'
# or reinstall the local checkout as a pipx CLI:
scripts/reinstall.sh

pip install cdt-release also works, but pipx keeps the CLI isolated from project Python environments.

The distribution is named cdt-release because the cdt project name on PyPI belongs to another project. The installed command remains cdt.

Upgrading from CDT 0.3.x

CDT 0.3.x installed from GitHub used the distribution name cdt. Migrate the pipx environment once:

pipx uninstall cdt
pipx install cdt-release

Project configuration does not require migration: cdt.yaml version 1 remains supported, and pipeline risk defaults to standard when omitted. Existing pipeline-named agent-release status files remain readable for compatibility; new runs use .cdt/runs/<run-id>/.

Commands

cdt --version
cdt init
cdt run <pipeline>
cdt run <pipeline> --dry-run
cdt history
cdt history --pipeline test --status failed
cdt status                         # newest run globally
cdt status <run-id>
cdt status --pipeline test
cdt logs --pipeline test --tail 80
cdt pipeline list
cdt pipeline inspect <pipeline> --json
cdt pipeline plan <pipeline> --json
cdt pipeline validate [pipeline]
cdt pipeline steps
cdt schema --output cdt.schema.json
cdt doctor
cdt self-update --check
cdt self-update --manager pipx
cdt self-update --json --check

Static planning commands (cdt pipeline plan <pipeline> and cdt run <pipeline> --dry-run) show the step tree, risk, warnings, and artifact flow without executing steps.

Every real run is recorded under .cdt/runs/<run-id>/ with an atomic status file, manifest, exit code, and log location. Human operators can continue to use cdt run test directly. cdt status and cdt logs resolve the newest run automatically, while --pipeline selects the newest run for one pipeline. Direct and detached runs save a redacted output.log (direct runs tee CDT diagnostics while streaming to the terminal; detached runs record the redacted combined output), and persisted status errors redact known environment secrets and common credential forms before they are written; cdt logs applies the same protection again when reading older records. See Run records for lifecycle, redaction limitations, concurrency, retention, and recovery.

Resume status migration note: current CDT status files store stable step ids (0, 1, 1/0, 1/0/1) instead of step names. Older name-based status files are rejected because duplicate names such as anonymous parallel groups are ambiguous. Recreate the status file by rerunning without --skip-completed, or use cdt pipeline inspect <pipeline> / cdt pipeline plan <pipeline> to map completed work to step ids manually.

cdt self-update updates the installed CLI to the latest GitHub release. It supports --manager pipx, --manager pip, and --manager uv; editable/local installs should be updated manually. Use cdt self-update --check to check without changing files, --json for machine-readable output, and --dry-run to see the release tag and update command without running it. The command requires outbound HTTPS access to api.github.com.

For a quick first run, use cdt init in a Flutter project and see Getting started in 5 minutes. cdt init creates a reviewable test pipeline; it never adds uploads, credentials, or production steps automatically.

Minimal cdt.yaml

version: 1

pipelines:
  prod:
    risk: production
    steps:
      - flutter.increment_build_number
      - flutter.pub_get
      - parallel:
          steps:
            - sequence:
                steps:
                  - ios.flutter_build_ipa:
                      profile: prod
                      flavor: prod
                      artifact: ios_ipa
                  - appstore.upload_testflight:
                      artifact: ios_ipa
                      changelog: prod build
            - sequence:
                steps:
                  - android.build_aab:
                      profile: prod
                      flavor: prod
                      artifact: android_aab
                  - android.build_apk:
                      profile: prod
                      flavor: prod
                      artifact: android_apk
      - notify.prod_user_agent
      - notify.success

See examples/cdt.yaml and docs/pipelines.md for a fuller prod pipeline, plugins, artifacts, and hooks.

Release notes

See CHANGELOG.md for release notes.

Releasing

After updating versions and the changelog, push a v* tag (for example v0.4.0). GitHub Actions runs lint, tests, build, and twine check, publishes cdt-release to PyPI through trusted publishing, creates a GitHub Release, and attaches the wheel and source archive from dist/. Use python scripts/release.py <version> to prepare the release commit and annotated tag locally. Use python scripts/release.py <version> --push only after explicit confirmation to rebase, push the commit, and push the tag.

Agent-friendly automation

CDT is agent-first, not agent-only. Humans keep the direct cdt run <pipeline> workflow, while automation clients can use JSON planning and detached execution without parsing full build logs.

CDT ships an Agent Skill at skills/cdt-release/SKILL.md. It makes agents inspect cdt.yaml, avoid production pipelines without exact confirmation, use isolated run IDs, wait on compact status JSON, and return concise structured summaries.

Repository-level guidance lives in AGENTS.md; hard release safety rules live in .agents/rules/cdt-release.md. Agent Skills compatible clients can copy or link skills/cdt-release/ according to their installation mechanism. See docs/ai-agents.md for setup and the stable automation contract.

Built-in steps

Use cdt pipeline steps for the complete list. Common built-ins:

• flutter.increment_build_number
• flutter.pub_get
• ios.flutter_build_ipa
• android.build_aab
• android.build_apk
• appstore.upload_testflight
• appstore.upload_testflight_ipa
• appstore.complete_testflight
• artifact.copy_to_downloads
• hook.python_script
• notify.prod_user_agent
• notify.success

Build steps use profile for CDT presets (profile: prod adds --dart-define=ENV=prod). Flutter flavor is separate. Build steps do not run flutter pub get or increment versions implicitly.

appstore.upload_testflight keeps the full upload cycle in one step and remains supported. New pipelines should prefer the resumable pair appstore.upload_testflight_ipa (iTMSTransporter upload only) followed by appstore.complete_testflight (find the uploaded build, wait for processing, set the changelog), so a failed completion can resume without re-uploading the IPA. See Pipelines for details.

Python hooks

- hook.python_script:
    script: cdt/hooks/fetch_offline_data.py
    env:
      OFFLINE_API_URL: ${OFFLINE_API_URL}
    outputs:
      - assets/offline_data.json

Hooks run from the project root as python3 <script> and must stay inside the project root.

Contributing and security

See CONTRIBUTING.md for development checks and pull request guidance. Report vulnerabilities privately as described in SECURITY.md. CDT is available under the MIT License.