# NousResearch/hermes-agent · Token cache memory unbounded by byte size

## Open now

- 1 issue, 1 PR open on GitHub.
- #84727: \[Bug\] Message token-estimate cache pins raw strings incl. base64 — entry cap is not a byte cap
- PR #85167: fix(agent): bound message token cache memory

A bug was identified where the message token-estimate cache pins raw strings including base64 data, making the entry count cap ineffective as a byte cap. The accompanying fixes add per-message byte bounds and skip oversized payloads to limit memory usage.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 1 open PR(s), 0 merged PR(s), 1 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Open related issues

- #84727: \[Bug\] Message token-estimate cache pins raw strings incl. base64 — entry cap is not a byte cap

## Prior & competing PRs

- **#84781: fix(metadata): bound per-message token memo by pinned bytes, skip giant payloads**. closed without merge
  - maintainer direction: category `silent_close`; implication `active`
- **#85167: fix(agent): bound message token cache memory**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `agent/model_metadata.py`, `tests/agent/test_token_estimate_cache_bounds.py`

## Fix status

- No merged fix on record.
- Subsystem: `agent`