docs(permissions): Attachments Access page + ADR-0057 sys_upload_session guard note#3009
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…ion guard note Documents the attachment access model landed across #2984/#2999/#2538 (#2970): parent-derived read/create/delete, inherited list visibility, authenticated parent-scoped downloads, the enable.files opt-in gate, the member_default no-delete-baseline caveat, the storage-byte lifecycle (sys_file + sys_upload_session reap guards), and an enforcement-summary + error-code table. Registered in permissions/meta.json. Also names sys_upload_session as the second reap-guard consumer in the ADR-0057 amendment. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0187NT3Qer9oep5dCRb9b8Lt
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Documentation for the attachment access/security model landed across #2984 + #2999 (framework) and #2538 (objectui), tracked in the now-closed #2970. No code changes.
New page —
content/docs/permissions/attachments-access.mdxA single authoritative summary of how access to record attachments is decided:
sys_attachment(join) +sys_file(blob) inherit the parent record's access (Salesforce ContentDocumentLink parity);Field.file/Field.imageare a separate path.enable.filesopt-in gate (FILES_DISABLED).ATTACHMENT_PARENT_ACCESS);uploaded_byserver-stamped.sys_attachment-scoped middleware (sototalcan't leak the hidden count).ATTACHMENT_DELETE_DENIED), with themember_defaultno-delete-baseline caveat (management needs a granted set).AUTH_REQUIRED/ATTACHMENT_DOWNLOAD_DENIED); non-attachments files (avatars, field images) keep their<img>-embeddable capability URL.sys_file+sys_upload_sessionreap guards.enable.files, the storage-service contract, Authorization Architecture, and ADR-0049/0057/0066.Registered in
permissions/meta.json(after Field-Level Security).ADR-0057
Names
sys_upload_sessionas the second reap-guard consumer in the reap-guards amendment (alongsidesys_file).Verification
check:doc-authoring✓ (195 files clean)./adr/route prefix (matching existing pages),meta.jsonis valid JSON,<Callout>is a component already used in this section.content/docschanges).🤖 Generated with Claude Code
Generated by Claude Code