# NousResearch/hermes-agent · Nova model cachePoint rejection in toolConfig.tools

## Open now

- Nothing open on GitHub.

A bug where Nova models throw a ValidationException when cachePoint appears in toolConfig.tools, along with multiple fixes to strip or recover from invalid cachePoint placements for those models.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #97704. Verify it addresses your case.
- **Recommended:** read PR #97704 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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.

## Closed / duplicate issues

- #97281: \[Bug\]: Nova models reject cachePoint in toolConfig.tools - ValidationException

## Prior & competing PRs

- **#97704: fix: P0 batch — five prompt-cache fixes + two desktop persistence fixes (salvage of #97618 #96755 #97327 #96768 #96608 #95886)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/bedrock_adapter.py`, `agent/chat_completion_helpers.py`, `agent/prompt_cache_boundary.py`, `agent/prompt_caching.py`, `agent/transcript_repair.py`, `agent/transports/chat_completions.py`, `agent/turn_finalizer.py`, `apps/desktop/electron/gateway-file-download-transport.test.ts`, `apps/desktop/electron/gateway-file-download.fs.test.ts`, `apps/desktop/electron/gateway-file-download.test.ts`, `apps/desktop/electron/gateway-file-download.ts`, `apps/desktop/electron/main.ts`, `apps/desktop/src/app/session/hooks/use-message-stream/index.ts`, `apps/desktop/src/app/session/hooks/use-message-stream/session-info-side-effects.test.tsx`, `apps/desktop/src/lib/chat-messages.test.ts`, `apps/desktop/src/lib/chat-messages/parts.ts`, `contributors/emails/[redacted:email]`, `contributors/emails/[redacted:email]`, `hermes_state.py`, `run_agent.py` (+7 more)
- **#97289: fix(bedrock): keep cachePoint out of toolConfig.tools for Nova models**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#97327`
- **#97327: fix(bedrock): recover from server-side cachePoint rejections per placement (Nova toolConfig.tools)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#97704`

## Fix status

- Merged to main in PR #97704 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-29`.