What Entire does
Entire is an MIT-licensed CLI and hosted Git platform from the former GitHub CEO. It hooks into your Git workflow and captures each AI agent session, including prompts, responses, files changed and token usage, as checkpoints linked to commits. A shadow branch holds checkpoints while a session is active, line attribution shows how much of a commit came from the agent, and a Trail groups one branch and one pull request from intent to shipped code for team review. It supports Claude Code, Cursor, GitHub Copilot, Codex, Gemini and several other agents.
What Nool does
Nool is a change-control layer for the same agents. Before an agent edits shared code it announces intent and takes a lease on the files it will touch. Its proposal is checked for semantic blast radius and conflicts with other agents' work, run through deterministic policy gates, and optionally reviewed by a cross-vendor quorum before it solidifies into a signed ledger and lands in Git. Replay, blame and bisect read that ledger back when something breaks.
Where they differ
Provenance versus permission. Entire answers how a change happened after the fact and lets you rewind to a checkpoint. Nool answers whether a change should happen at all, and stops two agents from colliding before either of them commits. As of September 2026, Entire's documentation describes sessions, checkpoints, attribution and trails; it does not describe multi-agent leases, semantic conflict detection, policy enforcement or review gates, which are Nool's core.
Using both
Run Entire to keep a searchable record of agent sessions in the repo, and run Nool to gate what those sessions are allowed to change. Nool's ledger and Entire's checkpoints both live alongside ordinary commits, so neither replaces GitHub or your existing review process.
When to choose which
Choose Entire when the question your team keeps asking is what happened: which session produced this commit, what was the prompt, how much of the file came from the agent. Its checkpoints, line attribution and trails answer that well and cost nothing to adopt. Choose Nool when the question is what should be allowed to happen: two agents want the same scope, a change reached further than it said it would, a policy must hold before push, a reviewer verdict has to be attached to the change. Choose both when you need the full record and the control; they do not conflict, because one writes checkpoints and the other writes knots, and both leave your commits alone.
Entire vs Nool, side by side
| Criterion | Entire | Nool |
|---|---|---|
| Agent session capture | Yes. Sessions and checkpoints paired to commits | Yes. Intent, evidence and attribution in the knot ledger |
| Rewind to a known-good state | Checkpoint rewind on a shadow branch | nool rewind, plus replay and bisect over the ledger |
| Scope leases between parallel agents | Not described | Announce, lease, then propose |
| Semantic conflict detection before merge | Not described | Blast radius and invariant checks at proposal time |
| Policy gates on agent changes | Not described | Deterministic gates, WASM and DSL policies |
| Cross-vendor review quorum | Not described | nool fleet builder and reviewer personas |
| Hosting | Optional hosted Git in US, EU and Australia | None. GitHub, Origin or any Git host stays the system of record |
| License | MIT CLI | CLI with free and enterprise plans |
Frequently asked questions
- Is Nool a replacement for Entire?
- No. Entire is an observability and provenance layer that records agent sessions. Nool is a governance layer that decides what agents may change. If your problem is knowing what happened, start with Entire. If your problem is agents stepping on each other or shipping out-of-scope changes, start with Nool.
- Can I run Entire and Nool on the same repository?
- Yes. Both work on top of ordinary Git. Entire stores checkpoints on refs or a dedicated branch; Nool keeps its ledger in the .nool directory and mirrors solidified changes to Git. Neither creates commits on your active branch, and neither needs the other to be present to work.
- Which coding agents do they support?
- Entire lists Claude Code, Cursor, GitHub Copilot, Codex, Gemini, Pi, OpenCode, Droid, Antigravity and Amp. Nool works with any agent that can run a CLI or call an MCP server, including Claude Code, Codex, Cursor and Gemini CLI.
- Does Nool record per-line attribution like Entire?
- No. Nool records the agent identity, intent, blast radius and evidence on each knot, and can replay a persona run, but it does not compute how many lines of a commit an agent wrote. Teams that want that figure should run Entire alongside it.