Conciseness

The body is dense and lean — every rule earns its place, assumes Claude's competence, and never explains concepts Claude already knows; the one trimmable instance is the Verification section restating rules already fully stated in The Discipline (e.g., 'every rule is checkable and states its why; no rule restates a lookup'), fitting anchor 4's 'minor instances that could be trimmed' rather than anchor 3's 'some unnecessary explanation'.

Actionability

As an instruction-only skill it gives concrete, executable guidance: every rule pairs an observable condition with a runnable test (e.g., 'changing a behavior is a one-place edit', 'the last line answers "what do I do next?" without scrolling up') and a negative example ("No 'keep it clean' — write the observable condition and the reason"), but it lacks worked examples of a well-formed rule, so it stops short of anchor 5's 'specific examples cover the common cases'.

Workflow Clarity

The single action (apply the discipline while writing) is unambiguous and the Verification section supplies explicit validation checkpoints before reporting done ('a fresh session could act on it without asking a human anything'), but the thirteen rules are presented as an unordered set of principles rather than a sequenced process, fitting anchor 4's 'clear sequence with most checkpoints present' rather than anchor 5's explicit feedback loops.

Progressive Disclosure

At roughly 50 lines with no bundle files and no external references, the body is cleanly organized into three well-labeled sections (When Not to Use, The Discipline, Verification), nothing that belongs in a separate file is inlined, and there are no nested references — matching the simple-skill exception for a 5.

Specificity

The description names its domain concretely ("documents agents consume (the five surfaces, specs, tickets, .omc/skills/)") and enumerates several distinct rule behaviors ("every rule checkable and carrying a why, steps before reference, one meaning in one home, no restating what the environment already says"), but these are abstract discipline properties rather than the operational actions of anchor 5, placing it noticeably above anchor 3's '1-2 concrete actions'.

Completeness

Both what ("Writing-time discipline for documents agents consume…") and when ("Mandatory at drydock seed generation and the launch C5 sediment pass; opt-in for any other agent-facing doc edit") are explicitly stated, so it clears anchor 3; but the when hinges on internal jargon rather than anchor 5's concrete natural trigger phrases, fitting anchor 4's 'when could be more explicit or specific'.

Trigger Term Quality

Good natural keywords are present ("specs", "tickets", "skill files", "agent-facing doc edit"), but common variations users would say are missing ("documentation", "CLAUDE.md", "README") and the mandatory triggers lean on project-internal jargon ("drydock seed generation", "launch C5 sediment pass") no outside user would naturally say — matching anchor 4, not anchor 5's comprehensive synonym coverage nor anchor 3's missing-common-terms profile.

Distinctiveness Conflict Risk

It occupies a clear niche (writing discipline for agent-consumed documents) and explicitly disambiguates from its nearest neighbor ("The companion of minimal-code-discipline: that one disciplines code, this one disciplines papers"), leaving minimal conflict risk — anchor 5, not anchor 4's 'minor overlap risk with closely related skills'.