opchain vs. the others.
Honest, opinionated comparison against seven popular AI-coding tools. opchain and stock Claude defaults are pinned on the left; pick up to four more to compare against — chips below the intro, one click toggles each column in or out.
- Claude-native customization primitives → stock Claude Code is already strong
- Editor autocomplete with style → Cursor, Copilot, Zed, or VS Code
- A managed agent that ships PRs unattended → Devin, OpenAI Codex, or Copilot cloud agent
- A multi-agent dispatcher with browser-verified output → Google Antigravity or Codex
- A pipeline of skills you own, free, in your repo → opchain
| opchain | Claude defaults | Cursor | GH Copilot | Devin | Zed | |
|---|---|---|---|---|---|---|
| 01 · Foundation — how it lives in your repo | ||||||
| Where instructions live | SKILL.md files checked into your repo MIT, plain text — diffable, reviewable, portable | CLAUDE.md, .claude/rules, skills, agents, hooks Claude Code now has several first-party customization files | Project / Team / User Rules, AGENTS.md, skills Project rules are file-based; teams can share internal rules and skills | .github/copilot-instructions.md + .github/instructions/*.instructions.md Prompt files add reusable task prompts in supported IDEs | Knowledge, Playbooks, .devin.md files Playbooks are reusable prompts; Knowledge carries project facts | Agent rules/skills + settings External agents keep their own native config |
| Session persistence | JSON checkpoints in .checkpoints/ Survive across chats; auto-resume next session | CLAUDE.md + auto memory Memory is repo-local and machine-local; chat context is still per session | Agent threads + project context No repo-owned checkpoint schema | Copilot Chat / agent context GitHub context is rich; no repo-owned checkpoints | Hosted session state + searchable history | Agent Panel threads/sidebar No opchain-style checkpoint schema |
| Adding your own workflow | Write a SKILL.md or fork an existing skill oc-reverse-spec can backfill a spec from existing code | Add skills, rules, hooks, subagents, MCP config | Rules, AGENTS.md, MCPs, skills, hooks | Custom instructions, prompt files, MCP, Copilot skills | Knowledge, Playbooks, automations, MCP | MCP tools, Agent Profiles, skills, ACP external agents |
| 02 · Pipeline & ops — what it does for you | ||||||
| Pipeline awareness | Yes — orchestrator routes between 22 skills Knows what phase you're in and what's next | No bundled phase graph You design the workflow yourself | Partial — Agent, Cloud Agents, Bugbot Strong coding flow; not a portable phase protocol | Partial — agent mode, cloud agent, code review | Yes — autonomous task planning/execution Service-owned workflow with cloud agents | Partial — agents in editor, external agents via ACP |
| Build AI apps (RAG / agents / evals) | Yes — 4 AI-native skills oc-claude-api, oc-rag-forge, oc-agent-forge, oc-prompt-ops: model routing, RAG, agent harnesses, prompt evals | No packaged RAG / agent / eval skill suite | General coding agent No packaged RAG / eval skill suite | General coding + GitHub Spark No packaged RAG / eval skill suite | General software agent No repo-local RAG / prompt-eval catalog | No packaged RAG / eval suite |
| Multi-agent quality loops | Built into the skill protocols Planner / Builder / Evaluator loops where they matter, committed as Markdown contracts | Possible with subagents/workflows Powerful primitives, no default evaluator contract | Cloud agents + Bugbot Reviewer exists, but the loop is service-defined | Agent mode + third-party agents/MCP No explicit Planner → Evaluator contract | Yes — Devin can manage child Devins Parallel hosted agents with a coordinator session | Parallel/external agents Profiles and ACP agents are manual composition |
| Audit gates before deploy | Three (oc-bug-check, oc-code-auditor, oc-security-auditor) oc-deploy-ops blocks prod if any gate fails | Hooks/settings can enforce commands No stock deploy pipeline gate | Bugbot reviews + hooks Deploy blocking lives in your CI or process | Copilot code review CI/GitHub Actions can enforce separately | Devin Review + internal checks External CI remains your enforcement layer | Tool permissions + sandbox settings CI/deploy gates are external |
| Multi-project status | /oc-ops command shows every project's last checkpoint Cross-repo dashboard built in | No bundled cross-repo checkpoint dashboard | Cloud/workspace views No portable checkpoint rollup | GitHub/org context No repo-local checkpoint dashboard | Hosted session/team views + DeepWiki | Threads/worktrees in editor No cross-repo checkpoint dashboard |
| 03 · Practicalities — cost, reach, lock-in | ||||||
| Cost | Free, MIT Pay only for the model or agent surface you run it through | Claude plan or API usage Claude Code access is tied to eligible plans or API billing | Free tier · Pro $20/mo · Teams $40/user/mo | Free · Pro $10 · Pro+ $39 · Max $100 · Biz/Ent $19/$39 seat | Free · Pro $20/mo · Max $200/mo · Teams $80 min + $40/full seat | Personal free · Pro $10/mo · Business $30/seat/mo |
| Vendor lock-in | None — every skill is one Markdown file Fork, edit, fork again | Anthropic-coupled Most local files are Markdown and easy to move | Cursor-coupled Rules are portable; execution is inside Cursor | GitHub-coupled Runs against the Copilot service | Service-coupled Knowledge, sessions, and cloud agents live in Devin | Editor-coupled for Zed Agent External agents own their own runtime and billing |
| Where it runs | Claude Code · Claude.ai/Desktop · Codex · any MCP client Drop-in skills plus the hosted MCP endpoint at opchain.dev/mcp | Claude Code, Claude.ai/Desktop, IDE integrations | Cursor IDE + Cloud Agents | VS Code · Visual Studio · JetBrains · Xcode · GitHub.com · CLI | Devin web, Desktop, Cloud, API/MCP | Zed editor (macOS · Linux · Windows) |
What opchain isn't
opchain isn't an IDE or a hosted cloud agent. It doesn't autocomplete as you type, and it won't run unattended on vendor infrastructure while you sleep. It's a set of skills that turn Claude (in any of its surfaces) into a pipeline you can lean on for the slow work — discovery, spec, audits, deploys, postmortems — and a checkpoint protocol that survives the gap between chats.
If you use Cursor or Copilot for line-by-line code, opchain sits on top of them — it's the long-form thinking layer, not the keystroke layer.
Switching from…
Keep Cursor for keystrokes. Add the opchain skill bundle to
.claude/skills/ and use it via Claude Code in a
second terminal pane for the work Cursor isn't great at —
spec interviews, security audits, multi-file refactors with
an evaluator loop.
Run oc-reverse-spec
against your project — it'll backfill the spec opchain
wants. Then unzip the bundle, commit it, and start invoking
skills by name.
opchain is the local-first analog. Same pipeline (plan → build → audit → ship → monitor), no hosted agent — Claude does the work in your editor with full repo access.
Try the pipeline builder — 4 questions, a recommended skill bundle, and an install snippet for your stack.
Want to test the claims above? Install opchain,
run /oc-discover, and watch the orchestrator route
through five skills before lunch.
Comparisons reflect publicly published features refreshed 2026-06-24 against Claude Code, Cursor, GitHub Copilot, Devin, Zed, Codex, and Google Antigravity docs/pricing. Spot a mistake? .