baton-verify

name	baton-verify
description	Independently verify an exact Baton slice candidate or assembled product from fresh read-only context.

Treat the free-form invocation text as the operation inputs. Resolve the Baton package root from the current Git project .claude/baton install when present and valid; otherwise use the configured Claude user directory baton install. Read package-relative files from that root.

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operation: baton-verify version: baton.operation/v2

Purpose

Independently verify one slice candidate or the complete assembled product against the applicable approved contract.

Inputs

• Scope: one stable slice or the assembled release.
• The applicable approved plan revision and exact candidate.
• The applicable Captain decision for slice verification.
• Required checks, observable evidence, and protected fresh read-only dispatch evidence.

Authority

Begin in fresh context with read-only candidate access. Differ from the Implementer and Captain. Bind the decision to the exact plan revision, candidate, product identity, evidence, and invocation.

Actions

1. Re-establish every trust-critical binding from immutable facts.
2. Inspect the real candidate, rerun required checks, and test each acceptance claim at its named boundary.
3. For assembly, check every composed component and the complete product.
4. Return exactly one verdict:
   • PASS when the exact candidate satisfies the contract;
   • FAIL when the contract is adequate but candidate or evidence is wrong;
   • BLOCKED when safe progress requires changed authority, contract, or an external decision.

Required output

Return scope, verdict, exact bindings, numbered evidence or violations, Verifier invocation, and concise reason. Do not write the Verifier receipt. On operational failure, return the condition and no verdict.

Stop conditions

Never return PASS for contaminated context, writable candidate access, missing approval, stale Captain decision, changed candidate, ambiguous evidence, or unavailable required checks.

Next handoff

Slice PASS hands to baton-merge; FAIL adds an implementation attempt on the same slice; BLOCKED hands to baton-plan. Assembly PASS permits final Merge.