Default: 3 rounds total. Round 1 is full. Later rounds check only changed code and open findings.
Extend to 5 only for security, permissions, auth, data loss, or state/concurrency, while a blocker or should stays open with evidence. Or when the user asks.
Stop early if a round returns only nits. Declined nits and comment, doc, or format-only fixes need no new round.
One reviewer only. Sol must not start subagents or reviewers.
Keep a ledger: id, severity, outcome, usage if returned. Never guess it.

1. Scope

Run git status --short. Do not stash, discard, or include unrelated changes. Limit review to the change paths if they separate cleanly. Otherwise stop and ask.

Find the base after git fetch origin:

PR: gh pr view <n> --json baseRefName,headRefOid. Check out the branch only if clean. Confirm HEAD is the PR head, or ahead only by this change. Base: git merge-base HEAD origin/<baseRefName>.
Local: git merge-base HEAD origin/<default-branch>. No remote: a base the user names, or HEAD for uncommitted changes only.

The change is base to working tree in those paths, with untracked files. Use one diff command all rounds. State intent and out-of-scope in 1-2 sentences. Run covering checks. Do not send code this change breaks. Note missing or pre-failing checks in the brief.

2. Start Sol

In T3, call orchestrator_capabilities. Pick the latest Sol unless the user named a version. Do not hardcode an ID. Record provider, model, and effort only if exposed. Use delegate_task every round (role: "review", mode: "async"). Save taskId. New clientRequestId per round. childThreadId is storage, not the next target. Do not use t3_thread_send, create_threads, or t3_thread_launch for review.

If T3 tools are not listed, try one direct capability call. Outside T3, use a native Sol subagent and keep its ID. In Claude Code, use a custom subagent only if it is set up to run Sol. If no route runs Sol, report the blocker. Do not substitute a model.

Do not edit scoped files while review runs. Wait for the notice. Do not poll or start a second reviewer. Timeout, error, or no reply is not approval. On failure, cancel, verify stop, restart with the ledger.

Round 1 brief (T3 children get no history):

Review only. Do not edit, commit, push, comment on PRs, or start subagents.
Repo: <abs path> Base: <sha> Intent: <intent> Out of scope: <scope> Checks: <results>
See: git diff <base> [-- <paths>]; git status --short (read untracked).
Read surrounding code. Find bugs, broken callers, mismatch with intent.
Skip style unless it hides a bug. Hold to the smallest change. Flag code,
tests, or guards the intent does not need. Other paths, rare cases, small
perf, extra compat: nits.
blocker = intended case wrong. should = real bug callers will hit, in intent. nit = rest.
Reply:
VERDICT: APPROVE or CHANGES
S1 [blocker|should|nit] <file>:<line> <claim>. Fix: <suggestion> (stable ids)

3. Answer findings

Check each finding and severity yourself. Another path, rare case, or small cost is a nit, whatever label it came with.

Agree: smallest fix. Prefer delete or narrow over new lock, cache, helper, or option. Fix the case that happened. Add one focused test that fails without the fix, if intent needs it.
Disagree: say why, with evidence (file:line, test, output).
Out of scope or nit: decline in one line. List as follow-up.

Update the ledger. Re-run checks and git diff --shortstat <base>. If review grew the diff, cut first. Do not agree just to end the loop.

4. Next round

Start one only if budget remains and a blocker or should is open, behavior code changed, or approval does not cover the current behavior diff. Use a fresh delegate_task in T3, or follow up the saved native ID. Send the round 1 brief, the ledger (fixed: / disagree: / declined: + evidence), the same base diff, and the change since last round. Tell Sol: open ids and changed code only. Mark each old id resolved or still open: <reason>.

5. Stop and ship

Agreed: APPROVE on the current behavior diff, no blocker or should open, no concern of your own. Stuck: an item stays disputed after two replies, or budget ends. Show both sides in 2-3 lines each. The user decides. Budget end is not approval.

Do not push during the loop. Push after agreement only if the user asked to push, ship, or update the PR. If you push to a PR, add above the model blurb:

Reviewed with sol-loop: <N> rounds with <model>. Sol verdict: approved.

Add on <effort> only if verified.

Report: rounds, model, what Sol changed, diff size before/after, fixed and declined findings with reasons, usage if exposed (else say not), pushed or not.