# NousResearch/hermes-agent · Vision analyze prompt validation and default handling

## Open now

- 1 issue, 1 PR open on GitHub.
- #53638: vision_analyze fails with HTTP 400 when user_prompt is omitted - empty user message sent to upstream API
- PR #64855:  fix(vision): validate user_prompt and use default when omitted (#53638)

These issues and pull requests concern a bug where omitting the user_prompt parameter in vision/video analyze calls sends an empty message to the upstream API, causing HTTP 400 errors. The fixes add input validation and a fallback default prompt.

## TL;DR

- 4 member(s): 1 open issue(s), 0 closed issue(s), 1 open PR(s), 0 merged PR(s), 2 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.50`: 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.

## Open related issues

- #53638: vision_analyze fails with HTTP 400 when user_prompt is omitted - empty user message sent to upstream API

## Prior & competing PRs

- **#53670: fix(vision): validate user_prompt and use default when omitted (#53638)**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `#64855`
- **#53731: fix(tools): add default prompt and empty-validation for vision/video analyze**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#53670`
- **#64855:  fix(vision): validate user_prompt and use default when omitted (#53638)**. open
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#53670`, `#53638`, `#53748`
  - files: `tests/tools/test_vision_tools.py`, `tools/vision_tools.py`

## Fix status

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