Evidence record / hermes-agent
A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the issues that cite it, below.
2026-08-10-hermes-agent-delegate-task-gains-caller-declared-output
delegate_task gains caller-declared output contracts.
An optional output_schema (JSON Schema) per task item and on the single-goal form. The child receives it as an explicit OUTPUT CONTRACT block; the parent validates the final answer with jsonschema and, on failure, sends exactly one bounded retry turn carrying the validation errors verbatim. Result entries gain schema_valid, plus schema_errors and schema_retries when relevant -- only when a schema was requested, so schema-less delegations keep a byte-identical result shape. Malformed schemas fail loudly at dispatch before any child spawns.
Channel: tagged-release. Ancestry: merge_commit_sha 0ebaa490b515cc0a1cdaa6f8df7b20d94cf990b9; compare/0ebaa490...v2026.8.13 -> status=ahead, ahead_by=1154, behind_by=0 (ancestor of stable tag v2026.8.13).
Operator consequence: Try it wherever you currently parse subagent prose with regex. It converts 'the child returned something' into a checkable assertion with a bounded repair loop, and the wire shape for existing callers is unchanged, so adoption is per-call rather than a migration.
Receipt
Finding metadata
Run: 2026-08-10-weekly-digest-2026-08-03_2026-08-10-frontier-v0
Finding ID: 2026-08-10-hermes-agent-delegate-task-gains-caller-declared-output
Source links
Primary links, including exact changelog lines when available.
Versioned source: run artifact