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.
- One prompt file your whole team edits → stock
CLAUDE.mdis fine - Editor autocomplete with style → Cursor or Copilot
- A managed agent that ships PRs unattended → Devin or OpenAI Codex
- A multi-agent dispatcher with browser-verified output → Google Antigravity
- 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 the prompts live | Markdown files in .claude/skills/ MIT, in your repo, plain text — diffable, reviewable | CLAUDE.md (single file) All-or-nothing | .cursorrules / .mdc rules Per-project, editor-coupled | .github/copilot-instructions.md + hosted instructions Vendor-managed | Hosted, internal Black box | .zed/settings.json + Agent Profiles Project + per-profile system prompts |
| Session persistence | JSON checkpoints in .checkpoints/ Survive across chats; auto-resume next session | Single CLAUDE.md context Re-read on every session | Per-chat memory; no formal protocol | Per-IDE-session | Hosted task state Tied to a Devin task, not your repo | Persistent assistant panel per workspace; no cross-session protocol |
| Adding your own | Write a SKILL.md, drop it in .claude/skills/ tied oc-reverse-spec backfills one from existing code | Edit CLAUDE.md tied | Write a .cursorrules file tied | Edit copilot-instructions.md tied | Limited Custom playbooks in Beta | Add an Agent Profile or edit .zed/settings.json |
| 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 | No — rules apply globally | No — chat is single-turn-ish | Yes, but as one monolithic agent | No — single agent, no pipeline concept |
| Build AI apps (RAG / agents / evals) | Yes — 4 AI-native skills (oc-claude-api, oc-rag-forge, oc-agent-forge, oc-prompt-ops) RAG, agents, prompt evals + an AI-safety audit pass — the LangChain / LlamaIndex / Vellum territory, as evaluated skills in your repo | No — wire RAG / agents / evals by hand | No | No | No — no first-class RAG / agent / eval skills | No |
| Tri-agent quality loops | 7 skills (oc-app-architect, oc-code-auditor, oc-integrations-engineer, oc-api-dev, oc-ux-engineer, oc-rag-forge, oc-agent-forge) Planner → Generator → Evaluator built in | No | No | No | Implicit Not surfaced as a contract | Agent profiles can chain Manual setup; not a contract |
| Audit gates before deploy | Three (oc-bug-check, oc-code-auditor, oc-security-auditor) oc-deploy-ops blocks prod if any gate fails | No | No | No | Internal checks No external contract | No |
| Multi-project status | /oc-ops command shows every project's last checkpoint Cross-repo dashboard built in | No | No | No | Per-task dashboard Devin-hosted | No |
| 03 · Practicalities — cost, reach, lock-in | ||||||
| Cost | Free, MIT tied Pay only your Claude usage | Free tied | $20–40 / user / mo | $10–39 / user / mo | $500 / mo seat (last published) | Editor free · Zed Pro $20/mo or BYOK AI usage gated; editor is fully free |
| Vendor lock-in | None — every skill is one Markdown file Fork, edit, fork again | Claude-coupled But trivial to migrate | IDE-coupled Rules only run inside Cursor | GitHub-coupled Runs against the Copilot service | Service-coupled All work runs on Devin infra | Editor-coupled Profiles only run inside Zed |
| Where it runs | Claude Code · Claude.ai · Claude Desktop · Codex / any MCP agent tied Native in Claude Code; hosted MCP endpoint for Codex and other MCP clients (v1.4.3) | Anywhere Claude runs tied | Cursor IDE | VS Code · JetBrains · GitHub.com | Devin web UI | Zed editor (Mac · Linux · Windows beta) |
What opchain isn't
opchain isn't an IDE. It doesn't autocomplete as you type, and it won't open a PR against a remote repo for you 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 as of 2026-05. Spot a mistake? .