# NousResearch/hermes-agent · MCP structuredContent deduplication and data loss fix

## Open now

- Nothing open on GitHub.

These items address a bug where MCP structuredContent was incorrectly discarded when text content was present. The fix narrows deduplication to only remove structuredContent when it is a verbatim JSON duplicate of the text block, preserving it otherwise.

## TL;DR

- 3 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 1 PR(s) closed without merging.
- A fix was merged to main in PR #116693. Verify it addresses your case.
- **Recommended:** read PR #116693 (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: `resolved` · deciding PR(s): `pr-116693`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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.

## Closed / duplicate issues

- #115430: \[Bug\]: MCP structuredContent is discarded whenever text content is present, causing data loss

## Prior & competing PRs

- **#116693: fix(mcp): structuredContent is kept when the text block is only a summary; only verbatim JSON duplicates are deduped (#115430, salvage #115445)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `tests/tools/test_mcp_structured_content.py`, `tools/mcp_tool_handlers.py`
- **#115445: fix(mcp): keep structuredContent unless content is its verbatim JSON dual-emit**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `bfb3b1a3f211`, `#116693`, `#115430`, `#115445`

## Fix status

- Merged to main in PR #116693 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-20`.