# NousResearch/hermes-agent · Docker sandbox missing mounted binary file attachments

## Open now

- Nothing open on GitHub.

A bug where the Docker backend cannot access attached binary files because the host path is not mounted into the sandbox container. Two related fixes address delivering and handling these binary attachments in Docker sandbox backends.

## 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 #81717. Verify it addresses your case.
- **Recommended:** read PR #81717 (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-81717`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #76577: \[Bug\] docker backend cannot read attached binary files — host path not mounted into sandbox

## Prior & competing PRs

- **#81717: fix(docker): deliver desktop binary attachments into sandbox backends (#76577)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `agent/context_references.py`, `apps/desktop/src/app/session/hooks/use-message-stream/gateway-event.ts`, `apps/desktop/src/app/session/hooks/use-prompt-actions/index.test.tsx`, `apps/desktop/src/app/session/hooks/use-prompt-actions/index.ts`, `apps/desktop/src/components/assistant-ui/thread/user-edit-composer.tsx`, `apps/desktop/src/lib/chat-messages.ts`, `apps/desktop/src/store/session.ts`, `tests/agent/test_context_references.py`, `tests/test_tui_gateway_server.py`, `tests/tools/test_credential_files.py`, `tools/credential_files.py`, `tui_gateway/server.py`
- **#76611: fix(docker): handle attached binary files (#76577)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `fe54ab4f98`, `#81717`, `#76577`, `#62825`

## Fix status

- Merged to main in PR #81717 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-08-08`.