Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add rules/jacson10l/hermes-runtime/hermes-memorygit clone --depth 1 https://github.com/jacson10l/Hermes-RuntimeWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00245 | $0.00245 |
| Opus 5 | $0.00122 | $0.00122 |
| Sonnet 5 | $0.00049 | $0.00049 |
| Haiku 4.5 | $0.00024 | $0.00024 |
Grade A, and why
hermes-memory scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Hermes Memory Rule
Before making code changes, read hermes/retrieval/index.md and any referenced Hermes memory files relevant to the task.
For every meaningful requirement, bugfix, investigation, refactor, deployment, or review task:
- Create or update a task record under
hermes/tickets/. - Record context, goal, changed files, behavior changes, verification, and follow-ups.
- For bugfixes with a useful root cause, create or update
hermes/memory/bugs/. - For durable feature behavior, create or update
hermes/memory/features/. - For architecture or technical decisions, create or update
hermes/memory/decisions/. - Update
hermes/memory/core/current-state.mdwhen project status, active problems, or next steps change.
Before claiming completion, verify that code changes, tests/checks, ticket updates, and relevant Hermes memory updates are all closed.
Do not use the legacy docs/ directory as the Hermes memory root. Hermes memory belongs under hermes/.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 23 lines · 245 tokens per session scan A 635817e5a1dc
hermes-memory is a cursor rule published in the GitHub repository jacson10l/Hermes-Runtime (4 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 245 tokens to every session, about $0.0012 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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