One protocol, five providers, and a disposable git worktree between them and your repo.
curl -fsSL https://caesar.koumalabs.org/install | shWithout caesar: one agent at a time in your working tree, every CLI with its own mission format to relearn, the agent writing straight into your repository — and you take its word for what changed. Locked into one provider's tool and subscription.
975 MB of node_modules cloned in 6.3 s and 11 MB of disk — versus 15.0 s and 994 MB with a plain copy.
max_parallel slots shared across processes; one workflow for five providers.
Nothing reaches your repository before an explicit diff → apply; file changes are reconciled against git (changes_verified_by: "git"); writing in place is refused by default.
Spend the quotas you already pay for, across five providers; pick the model per task or per role ([models], role.model); race providers on one objective and keep only the best diff.
method · the clone benchmark is measured in this repository (APFS copy-on-write); the rest is design, not marketing
Three ideas carried through the whole CLI — and a live view to follow them at work.
OACP sits on the filesystem — a task directory, a JSON report, an event log. No SDK to install, no client library to keep in sync with five different CLIs.
--channel)Every delegation gets its own disposable git worktree. Nothing touches your repository before an explicit diff → apply.
[worktree] copy · link · setup$ caesar run --agent codex --isolation worktree "Create a hello.txt file containing exactly OK"▞▚ caesar · run ────────────────────────────────────────────────────────────────── ● start agent "codex" ▸ tool shell — wc -c hello.txt && od -An -t x1 hello.txt (started) » agent I am creating the file with exactly two bytes, no trailing newline. ▸ tool shell — wc -c hello.txt && od -An -t x1 hello.txt (succeeded) ~ file created hello.txt✓ Task t_680818a6 — status: succeeded (report "success" via "schema") The hello.txt file was created with exactly the two bytes "OK", no trailing newline.Files modified (according to git) ~ created hello.txtIsolated in a worktree: "caesar diff t_680818a6" to see the diff, "caesar apply t_680818a6" to integrate it.
Unedited output from caesar run.
What the agent declares it changed and what git diff actually observes are reconciled — the diff wins, never the agent's word alone.
changes_verified_by: "git"$ caesar diff t_680818a6a92047a2b08bb904e46d8427diff --git a/hello.txt b/hello.txtnew file mode 100644index 0000000..a0aba93--- /dev/null+++ b/hello.txt@@ -0,0 +1 @@+OK\ No newline at end of file$ caesar apply t_680818a6a92047a2b08bb904e46d8427Task "t_680818a6a92047a2b08bb904e46d8427" applied to the main repository.
Unedited output from caesar diff, then caesar apply.
A live view of every running delegation — the tool appears as soon as it starts, and what the agent says is displayed as it streams. Watching modifies nothing.
max_parallel, shared across processes▞▚ caesar · watch 1 active · max_parallel 4 17:21:20● t_efb5914d codex — 25s inplace · write Write three files a.txt, b.txt and c.txt, then run 'sleep 8 && ls -1'… ▸ shell /bin/zsh -lc 'sleep 8 && ls -1' — 3s ~ 3 file(s) · 11 event(s)q or Ctrl-C to quit — watching modifies nothing.
Unedited output from caesar watch.
| Agent | Binary | Notes |
|---|---|---|
| Codex | codex | allowed by default — network opens only in write mode |
| Antigravity CLI | agy | allowed by default — open network |
| OpenCode | opencode | allowed by default — open network |
| GitHub Copilot CLI | copilot | allowed by default — network controllable |
| Claude Code | claude | denied by default — recursion guard |
Run the installer, then point caesar at the project you want to delegate tasks in.
Note caesar is not published on npm yet. The installer runs it from a checkout it manages for you — there is nothing to install as a project dependency.
curl -fsSL https://caesar.koumalabs.org/install | sh
cd <your-project>
caesar init # writes .caesar/config.toml + the prompts and skills
caesar doctor # which agents are installed, allowed or not