# NousResearch/hermes-agent · Weixin duplicate message deduplication by content fingerprint

## Open now

- Nothing open on GitHub.

These issues and pull requests concern duplicate inbound Weixin messages arriving with different message IDs but identical content. The work involves adding content-fingerprint deduplication in the gateway/adapter, with a noted exemption for slash commands.

## TL;DR

- 5 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 3 PR(s) closed without merging.
- A fix was merged to main in PR #19742. Verify it addresses your case.
- **Recommended:** read PR #19742 (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-19742`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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 `0.40`: 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

- #16182: \[Bug\]: Weixin adapter: duplicate inbound messages — same content delivered twice with different message_id

## Prior & competing PRs

- **#19742: fix(gateway): deduplicate Weixin messages by content fingerprint**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `gateway/platforms/weixin.py`, `tests/gateway/test_weixin.py`
- **#16190: fix(gateway): deduplicate Weixin messages by content fingerprint**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#19742`
- **#16646: fix(weixin): add content dedup to catch ilinkai duplicate redeliveries (#16182)**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `7a8ee8b29d86dcb7019677504f5c63587dc70b3b`, `#19742`
- **#29787: fix(gateway): exempt slash commands from weixin content-fingerprint dedup (#29779)**. closed without merge
  - maintainer direction: category `stale_abandoned`; implication `active`

## Fix status

- Merged to main in PR #19742 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-05-04`.
- Subsystem: `gateway`