Conciseness

The body assumes Claude's competence (no explanation of QE, BSON types, or ceiling division) and stays operational throughout, but the Document Storage formula "1.2 * (255 * T + 122 + ceil((v + 6) / 16) * 16)" is repeated verbatim four times in Step 6, and Step 5 lists the per-field parameters twice (once as the file-write format, once as the ask-the-user list). This matches anchor 4 (efficient with minor over-explanation that could be trimmed) rather than anchor 5, and is well above anchor 3 since there is no padding or instruction on known concepts.

Actionability

Guidance is fully executable: exact formulas ("71 + ceil((v+6)/16) * 16"), exact file-write templates ("**N:** <value>", the FIELD VALUES header), enumerated validation rules ("'equality': any BSON type except object, array, decimal, double"), and verbatim output text for Step 2 and Step 8. This matches anchor 5 — concrete, copy-paste-ready instruction covering the common cases (manual input and encryption schema paths are both handled).

Workflow Clarity

Nine clearly sequenced steps with explicit validation checkpoints and feedback loops: inputs are validated against enumerated rules ("If a value falls outside allowable bounds, reject it and inform the user. Do not proceed without a valid value"), Step 6 includes a silent audit pass ("Do a silent audit pass to verify the information you just added uses the correct T formula"), and Step 1 confirms before deleting an existing file. This matches anchor 5 (clear sequence, explicit validation, error-recovery loops); the destructive/batch-operation cap does not apply because validation is present.

Progressive Disclosure

The single file is well-organized into General Instructions, Definitions, Validation, and Steps 1-9 with consistent section headers, and no bundle files exist to reference — matching anchor 4 (good structure, most content appropriately placed, minor organization gaps). It is not anchor 5 because at ~210 lines the validation matrix and the Step 6 formula catalog are inlined monolithically where they could be split into one-level-deep reference files; it is above anchor 3 because nothing is buried and navigation is easy.

Specificity

The description names its domain ("collections with Queryable Encryption (QE) enabled") and one to two concrete actions ("Estimates the storage and memory impact of encrypting fields"), matching the anchor for 1-2 concrete actions without broader coverage. It falls short of anchor 4 because it does not list several distinct actions (e.g., per-field breakdowns, index sizing, reporting), and is well above anchor 2 because the action stated is specific rather than generic.

Completeness

The "what" is clear (estimates storage and memory impact of QE field encryption), but the only trigger guidance is negative ("Do NOT use for collections that use Client-Side Field Level Encryption (CSFLE) instead of QE") — there is no positive "Use when..." clause, so the "when" is only weakly implied. Per the judging guideline, missing explicit trigger guidance caps completeness at 3, and anchor 4 requires an actual (if imperfect) when-clause rather than only an exclusion.

Trigger Term Quality

Strong natural keywords for the domain: "Queryable Encryption", "QE", "CSFLE", "encrypting fields", "storage", "memory" — the exact terms a MongoDB user would say. Not anchor 5 because common variations like "MongoDB", "sizing", "disk space", or "field-level encryption" are absent; above anchor 3 because the core natural phrases (not just technical jargon) are present.

Distinctiveness Conflict Risk

Occupies a clear niche ("Queryable Encryption (QE)" storage/memory sizing) and explicitly disambiguates from the nearest competing feature ("Do NOT use for collections that use Client-Side Field Level Encryption (CSFLE)"), minimizing conflict risk. This matches anchor 5 (clear niche with distinct triggers); anchor 4 would leave overlap with closely related skills unaddressed.