omegacode
An agent-agnostic implementation of Claude Code's Workflows. omegacode runs JavaScript workflow
files that orchestrate fleets of coding agents with a small deterministic DSL — agent() /
parallel() / pipeline() / phase() — and the workers are pluggable: the same workflow can
drive Claude Code, Codex, OpenCode, and pi in a single run.
Install
npm install -g omegacode
omegacode install-skill
install-skill teaches your agents how to author and run workflows by copying the skill into
~/.claude/skills/ (Claude Code) and ~/.agents/skills/ (Codex and other agents). Pass
--claude or --agents to install to just one.
You'll need Node 20+ and at least one worker installed: codex (the default provider), claude,
opencode (≥ 1.16.2), and/or pi (≥ 0.79.1, npm i -g @earendil-works/pi-coding-agent). Run
omegacode doctor to check — it flags binaries below the minimum versions, which the workers
refuse at runtime.
Note on opencode/pi sandboxing: neither CLI can enforce a confined sandbox, so omegacode accepts them only with an explicit
sandbox: "danger-full-access"(per call or via--sandbox). The defaultread-onlysandbox is rejected with an error naming the remedy — a deliberate fail-closed choice. Model strings pass through verbatim to the backend (e.g.agent("…", { provider: "opencode", model: "openrouter/anthropic/claude-sonnet-4.5", sandbox: "danger-full-access" })).
Use it
With the skill installed, just ask your agent:
use omegacode to adversarially review this PR with both claude code and codex
It will author a workflow — finders fan out in parallel, a cross-provider skeptic pass tries to
refute each finding, a synthesizer merges what survives — then run it and report back. Runs are
journaled and resumable, and omegacode serve opens a live dashboard of every agent as it works.
What a workflow looks like
export const meta = { name: "adversarial-review", description: "find bugs, cross-examine them" }
// FINDINGS and VERDICT are plain JSON Schemas, elided here
phase("Find")
const findings = await parallel(
["correctness", "security", "performance"].map((lens) => () =>
agent(`Review the diff through the ${lens} lens. List concrete issues.`, { schema: FINDINGS })),
)
phase("Verify")
return await pipeline(
findings.filter(Boolean).flatMap((f) => f.issues),
(issue) => agent(`Try to refute: ${issue.desc}`, { provider: "claude-code", model: "claude-fable-5", schema: VERDICT }),
)
Plain JavaScript, no imports — the DSL is injected. Each agent() spawns a real Codex, Claude
Code, OpenCode, or pi agent; omit provider/model to inherit whatever the run was started with
(--provider --model, default codex), or pin them per call when you want cross-provider
diversity. Provider and model are both-or-neither at every site (per-call, meta defaults,
CLI flags): a lone provider: or model: is rejected, so a model meant for one provider can
never silently ride another provider's call.
CLI
omegacode run <file.workflow.js | name> # run a workflow (auto-starts the live viewer)
omegacode serve # read-only dashboard over all runs
omegacode run <name> --resume <runId> # resume — only the changed suffix re-runs
omegacode doctor # check codex/claude/opencode/pi availability + versions
omegacode guide # print the full authoring guide
run also accepts saved workflow names. Six built-ins ship with the package:
deep-research, code-review, and four multi-provider workflows that put the two
models' decorrelated errors to work — multi-provider-review (both review the same
branch independently, then a synthesis merges both), bake-off (both implement the
same task in isolated worktrees, blind cross-provider judges pick a winner),
provider-debate (propose → attack → rebut for N rounds, then a judge rules), and
second-opinion (both answer cheap; agreement returns merged, disagreement escalates
to deep effort and adjudicates). Try omegacode run deep-research --args '"your question"', or omegacode workflows to list them. See omegacode guide for the
complete authoring reference.