hermes-agent

Facts

Openness

Open source

Licence

MIT

Language

Python

Pinned version

0a374d1 (2026-10-02)

Topics checked

33 of 33

Kind of agent

Conversational assistant

Source repository (opens another site)

What it does notably well

• Budgets

  Platform-aware default enforcement split for the no-progress guard: the same detector and thresholds run everywhere, but ToolCallGuardrailConfig.from_mapping flips…

  Batch-cycle (A/B/A/B...) loop detection layered on the consecutive-identical streak: a per-turn deque keeps the last 64 (signature, result_hash, repeatable) tuples and…

  Child-cost rollup with a source/status promotion rule: _rollup_children_cost (tools/delegate_tool_results.py:377-390) folds every delegated child's estimated USD spend into the…

• Checkpoints and rewind

  Safe restore through an agent-write ledger: Hermes records the SHA-256 of every file it writes through write_file or patch (record_agent_write; files written by terminal commands…

  Single shared shadow git store (GIT_DIR, GIT_WORK_TREE and GIT_INDEX_FILE per project, refs/hermes/<hash>) that deduplicates blobs across worktrees and turns, plus a pre-rollback…

• Code mode

  Collapse a multi-call workflow into one tool call: the model writes a Python program that calls the bridged tools as functions with loops, filtering and branching, and only what…