Conciseness

The body is dense with tool-specific facts (200-path limit, 256 KiB message cap, soft-delete storage retention, ID-fixed membership) and explains nothing Claude already knows. Minor trimming is possible where the no-ZIP-exists caveat repeats ("The tool does not create, upload, or download an archive itself" / "It does not mean that a ZIP exists" / "no incomplete ZIP is saved") and policy warnings appear twice, which fits anchor 4 rather than anchor 5's every-token-earns-its-place.

Actionability

A copy-paste-ready tool.call("create_client_side_file_bundle", {...}) snippet with realistic values is provided, along with explicit result handling ("Read result.content and check result.ok"), concrete constraints (160-char title, 200 paths, 256 KiB), enumerated result.data fields, and a per-error recovery playbook. This matches anchor 5: fully executable code with specific guidance covering the common cases.

Workflow Clarity

The sequence is explicit ("First identify the exact files ... Then run") with validation checkpoints (check result.ok; "Report attachment readiness only after the ZIP is created and available") and error-recovery feedback loops ("read the reported path and reason, correct the selection or wait for synchronization, then retry"). The batch-operation cap does not apply because recovery loops are present.

Progressive Disclosure

No bundle files (references/, scripts/, assets/) exist, none are referenced in the body, and none are needed for this single-purpose skill. The document is organized into tight, well-labeled sections (Create a Card, Attachment Fallback, Parameters and Boundaries, Result and Download Behavior, Errors) with nothing that belongs in a separate file and no nested or buried references.

Specificity

"download or package a collection of existing workspace files" names two concrete actions and "mixed images, documents, audio, video, code, or archives" gives broad type coverage, exceeding anchor 3's not-comprehensive bar. It falls short of anchor 5, whose examples list multiple distinct actions, because the actual mechanism (creating a client-side download card) is not mentioned.

Completeness

The 'when' is explicit and concrete ("Use when a user wants to download or package a collection of existing workspace files ... or reports that a previously provided file bundle card cannot be used"), stronger than anchor 4's example. The 'what' is only fused into the trigger clause rather than asserted as the skill's own action, so anchor 5's clearly separated what-and-with-concrete-triggers is not fully met.

Trigger Term Quality

Natural phrases like "download", "package", "collection of ... files", and "file bundle card" match what users would actually say, giving good coverage above anchor 3. Anchor 5 is not met because common synonyms and extensions such as "zip", "compress", or ".zip" are absent.

Distinctiveness Conflict Risk

Scoping to "a collection of existing workspace files" plus the distinctive card-failure re-trigger makes it mostly distinct from related skills. Minor overlap risk remains with single-file download or external-URL download requests, since no exclusion for those cases is stated.