- gate model selection on steering-placement image carriers from enqueue until their steering/message event publishes; release the gate when an admission ends idle without publication (both behaviorally asserted) - reject session.updateQueue edits carrying non-text blocks at the RPC boundary (queue edits cannot bypass image admission) - extend the durable-directory walk past a first-created DSH_HOME to the deepest pre-existing ancestor - strip Windows-style separators from attachment display names on POSIX - verify attachment reads with a header-only probe (digest already proves the bytes decoded fully at admission); document the read path - make SessionInputShell.addImages refusal observable and keep workspace transfers/composer intake from leaking refused drafts - own ONE recursive image walk (dsh-llm contentHasImage) across apiproxy, pi-ai, compact-basic, and the DeepSeek text-only assertion - drop the redundant canonical-base64 regex and the no-op role read - move AttachmentId/AttachmentError out of types.ts (brand.ts/error.ts); document why AttachmentError does not extend HarnessError - document the hard attachments inject in both consumer READMEs
@deepseek-ai/dsh-attachment-local
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The private local implementation of @deepseek-ai/dsh-attachment. Objects land at <DSH_HOME>/attachments/v1/objects/<sha256-prefix>/<sha256> and are addressed by an opaque sha256: id. Writes use a private staging directory, owner-only files, a synced temporary file, an atomic exclusive hard-link publish, and a directory sync on the publication directories (POSIX; Windows relies on filesystem metadata journaling) so the reported reference survives a crash. Write admission and reads fully decode the raster before accepting its format and dimensions; reads also re-check the digest and logged metadata. Byte and pixel limits are write-time admission policy, so a later policy reduction does not make already-admitted history unreadable.
DSH_HOME resolves through the shared path policy: explicit config, $DSH_HOME, then ~/.dsh. Session logs contain only the reference and verified metadata, never this host path.
Model Experience
Indirectly, through durable replay of historical user images and structured model image output after restart and fork.
KV Cache effect
None beyond the image block owned by the requesting adapter.
Known Limitations and Deferred Work
- Objects are retained indefinitely; reference-aware garbage collection is deferred.
- The local backend assumes the host and provider adapter share this filesystem service.
- Animated GIF metadata is validated from the logical screen; frame-level decoding policy is provider-owned.