opchain
Opchain 2.0.4 · 36 skills · released September 14–21, 2026.
A coordinated set of Claude skills covering the full software development pipeline — discover, spec, design, build, audit, ship, scale. One skill per phase. A shared JSON checkpoint protocol carries context across sessions and skills, so work resumes where you left off.
Site & docs: https://opchain.dev
install
Claude Code — plugin (recommended)
Ships complete skills and plugin hooks for session context and suggestions.
Run /oc-enroll in each repository to enable the Git commit gate. Installing the
plugin alone does not enroll repositories or enable learning.
/plugin marketplace add asfbay-bit/opchain-skills
/plugin install opchain
Claude Code — zip (skills only, no hooks)
curl -L https://opchain.dev/opchain-skills.zip -o opchain-skills.zip
unzip opchain-skills.zip -d .claude/skills/
claude
> /oc-discover
Claude.ai / Claude Desktop
Download complete skill ZIPs from Install, then use your host's supported skill upload flow. Keep references and runtime files with each skill. Local runtime commands require Node.js 22.13 or newer and a host that can execute them; a hosted chat without local tools cannot run those commands.
Team (check into git)
git add .claude/skills/
git commit -m "chore: add opchain skills"
git push
Upgrade
For an existing repo installation, ask your coding agent to run:
/oc-update check
/oc-update
If you use 1.9 or earlier and the updater is missing, copy the upgrade prompt at the top of Install. It checks the host and published release, then installs the complete package. The updater preserves checkpoints, local tracking consent, usage history and unrelated skills, and backs up replaced Opchain files. Global plugin installations use the host's supported plugin update.
Open a new agent session afterward and run /oc-update check to verify the
installed package. Learning remains off until explicitly enabled; provider access
and an external reviewer must be configured separately.
ow-tools (Claude Code add-on for the ow- planning skills)
plugins/ow-tools/ runs code on your machine: local call transcription with
speaker separation, branded PDF and Word export, date and arithmetic checks, and
a session-start list of open workstreams. It comes from its own marketplace, so
an administrator can approve it without approving anything else here:
/plugin marketplace add https://raw.githubusercontent.com/asfbay-bit/opchain-skills/main/plugins/ow-tools/.claude-plugin/marketplace.json
/plugin install ow-tools@opchain-work-tools
Then run /ow-tools to see what your machine still needs. ow-tools installs
nothing itself. See plugins/ow-tools/README.md.
skills
Full descriptions, triggers, and examples: https://opchain.dev/skills
the checkpoint protocol
Every skill writes a JSON checkpoint to .checkpoints/ in your project.
Skills read each other's checkpoints to make informed decisions — context
flows forward without manual handoffs.
oc-deploy-opsreadsoc-code-auditor— CRITICAL findings block deploy- The build evaluator reads
oc-ux-engineer— grades frontend against the approved design spec oc-git-opsreadsoc-app-architect— names branches by sprint
Schema lives in
skills/oc-checkpoint-protocol/SKILL.md.
this repository
This is a public, force-push snapshot mirror of the skill source. The site,
build system, and internal tooling live in a private upstream repo; only
the product (this directory) is published here, refreshed on every change
to main upstream.
See CONTRIBUTING.md for how issues and PRs flow back into the upstream repo.
license
Apache-2.0 — see LICENSE and NOTICE. Releases up to and including v1.8.2 were published under MIT.