# NousResearch/hermes-agent · Bedrock Converse empty text block placeholder fix

## Open now

- 1 issue, 1 PR open on GitHub.
- #39829: \[Bug\]: Bedrock Converse rejects whitespace-only placeholder ('text content blocks must contain non-whitespace text'); breaks resuming assistant-first history
- PR #39850: fix(bedrock): replace whitespace-only ' ' placeholder with '(empty message)' in Converse adapter

A bug where whitespace-only placeholder text in Bedrock Converse content blocks caused rejections, with multiple fix attempts replacing the placeholder with a non-whitespace string like '(empty message)'.

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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #39829: \[Bug\]: Bedrock Converse rejects whitespace-only placeholder ('text content blocks must contain non-whitespace text'); breaks resuming assistant-first history

## Prior & competing PRs

- **#39850: fix(bedrock): replace whitespace-only ' ' placeholder with '(empty message)' in Converse adapter**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `agent/bedrock_adapter.py`
- **#40075: fix(bedrock): avoid whitespace-only converse placeholders**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#39871`, `#39829`, `#39850`
- **#41985: fix(bedrock): use non-whitespace placeholder for empty content blocks**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`; refs `9172048a2f`, `a7e911150c`, `#66167`

## Fix status

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