# NousResearch/hermes-agent · Slack approval messages failing due to 3000-char block limit

## Open now

- Nothing open on GitHub.

A bug where Slack's chat.update API rejects approval/confirm card updates when section text exceeds 3000 characters, causing the card to never visually update after a button press. Multiple fixes address this by truncating the offending text fields before sending the update.

## TL;DR

- 5 member(s): 0 open issue(s), 2 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 #69317. Verify it addresses your case.
- **Recommended:** read PR #69317 (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evidence (`STRUCTURAL_PARTIAL`): some members are connected by structural evidence (shared changed files, or a closing/superseded reference); the rest are joined by an automated relevance judgement over their text.
- Members outside that structural core may belong to a different underlying problem.
- Pairwise link density `0.34`: 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

- #53693: Slack approval/confirm card chat.update fails (invalid_blocks >3000) after button press; approval resolves but card never updates
- #62054: \[Bug\]: Slack approval UI fails to update when section text exceeds 3000 chars

## Prior & competing PRs

- **#69317: fix(slack): sanitize outbound Block Kit payloads — invalid_blocks / msg_too_long hardening**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`; implication `superseded`
  - files: `contributors/emails/[redacted:email]`, `contributors/emails/[redacted:email]`, `contributors/emails/[redacted:email]`, `plugins/platforms/slack/adapter.py`, `plugins/platforms/slack/block_kit.py`, `tests/gateway/test_slack.py`, `tests/gateway/test_slack_approval_buttons.py`, `tests/gateway/test_slack_block_kit.py`, `tests/gateway/test_slack_block_kit_adapter.py`
- **#53701: fix(slack): truncate inflated original_text in approval/confirm chat.update handlers (#53693)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `#69317`
- **#62053: fix(slack): truncate section text when updating approval messages**. closed without merge
  - maintainer direction: category `duplicate_of`; implication `duplicate`; refs `#53701`, `#61697`, `#53701`, `#43444`, `#53693`, `#62054`

## Fix status

- Merged to main in PR #69317 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-07-22`.
- Subsystem: `gateway`