# T01: Repo Call Chain (read-only) · Public Acceptance Basis v1.0

- Task ID: `T01`
- Frozen baseline: `ed2390f2df8252f062abd9123e20f6fffca7e5ed`
- Prompt SHA-256: `dc702af37ac26078b1b5eaf1f64fa2c7a5d54d2b5497c896b1a63323887d7cfd`

> These acceptance points were published separately after the batch finished, to support score review; they are not part of the agent-executable sample package.

## Acceptance points

- Reference chain: `ledger/__main__.py` → `ledger.cli.main`/`build_parser` → `ledger.settings.resolve_data_file` → `ledger.storage.load_transactions` → `ledger.query.list_transactions`/`filter_by_date` → `ledger.formatting.format_transactions` → stdout.
- At least 5 real nodes in the correct order; explicitly states the CSV is read-only with no persistent writes.
- Any file modification fails the read-only constraint.