A small, OpenCode V2-native package containing a curated set of engineering workflows adapted from ECC, plus a read-only project-status tool and a conservative project installer.

This is an early development release. It currently targets OpenCode 2.0.24 and Node.js 20 or newer. It is not yet published to npm.

Included

Skills: coding standards, security review, and test-driven development.
Subagents: planner, code reviewer, and security reviewer.
Plugin tool: toolkit_project_status, implemented against OpenCode's V2 VCS API. Live plugin activation is still under validation (see FIXME.md).
Project installer with JSONC-preserving plugin registration, file ownership hashes, collision checks, and protection for locally modified files.

Provider/model selection remains the user's OpenCode configuration. The package does not enable hooks through a global install or configure credentials.

Install from a local checkout

Until a release is published, install the package from its checkout in the project where it will be used:

npm install --save-dev /path/to/opencode-toolkit
npx opencode-toolkit install .

Replace /path/to/opencode-toolkit with the checkout path on your machine.

The installer copies the selected skills and agents into .opencode/, adds the package plugin to the applicable project config, and writes an ownership manifest. It does not overwrite unmanaged files. If a managed file has been edited since installation, updates stop rather than replacing it. If both opencode.json and .opencode/opencode.json exist, installation stops until the project consolidates them; this avoids ambiguous V2 config precedence.

To remove managed content and the plugin entry when the installer added it:

npx opencode-toolkit uninstall .

Modified managed files are preserved and reported. The installer does not yet remove the npm dependency from the consuming project's package.json; remove that dependency separately if desired.

After installation, restart or reload OpenCode and select the installed toolkit-* skills or subagents as needed. Configure and authenticate your provider normally in OpenCode.

Development

npm install
npm run typecheck
npm test
npm run test:coverage
npm pack --dry-run

The package is tested against OpenCode 2.0.24. The unit and installer tests are deterministic and do not call an LLM. Provider-backed workflow validation is not yet complete; see FIXME.md and TODO.md.

Project documentation

AGENTS.md: verified development commands and conventions.
docs/IMPLEMENTATION-PLAN.md: accepted plan, phases, scope, and acceptance criteria.
docs/PROVENANCE.md: ECC source revision, attribution, adaptations, and content hashes.
CHANGELOG.md: user-visible changes.
TODO.md and FIXME.md: remaining work and known gaps.

License

The new implementation is MIT licensed. Adapted ECC material remains subject to the preserved MIT notice and attribution described in NOTICE.md.