Conciseness

The body is mostly tight, table-driven content, but the Partnership Types section spends ~15 lines on adjacent-type knowledge and flagship stats ("HubSpot's partner program = $100M ARR, ~40% of revenue, 3,400+ partners"), and the "Unique Assets Each Brings" table is trivially symmetric padding ("Your audience size/engagement | Their audience size/engagement"). Anchor 3 fits: mostly efficient with some unnecessary explanation that could be trimmed — not 4 given the size of the taxonomy digression, not 2 since most sections are lean and useful.

Actionability

Concrete, usable guidance throughout: a copy-paste cold outreach template, a 6-criteria partner scoring table, checklists, an 8-point agreement outline, and specific tool pointers (Crossbeam/Reveal). Minor gaps keep it below anchor 5: the 1-5 partner scoring has no thresholds or interpretation guidance, and the success-metrics section lists metrics without benchmarks or targets.

Workflow Clarity

The Co-Marketing Checklist explicitly sequences Identification → Campaign Planning → Execution → Post-Campaign, and "Before Starting" adds an entry checkpoint (read product-marketing context before asking questions). Not anchor 5: no explicit go/no-go decision points (e.g., minimum partner score before outreach), and no verification of campaign prerequisites before launch; not anchor 3 since the sequence is explicit rather than implicit.

Progressive Disclosure

The partnership-types taxonomy is summarized inline with a clear one-level-deep pointer to references/partnership-types.md (which exists), and external tool guides are clearly linked. However, ~300 lines of campaign-format tables, agreement outline, and metrics detail are inlined in SKILL.md where some could be split into references — anchor 4's "minor organization gaps," short of anchor 5's lean overview with fully appropriate splitting.

Specificity

Lists three concrete actions ("find co-marketing partners, plan joint campaigns, or brainstorm partnership opportunities"), but the body also covers structuring agreements, approaching partners, and measuring success, which the description omits. Anchor 4 fits: several specific actions with minor coverage gaps — not 5 (not comprehensive), not 3 (well beyond 1-2 actions).

Completeness

Explicitly answers both what ("find co-marketing partners, plan joint campaigns, or brainstorm partnership opportunities") and when ("Use when the user says 'co-marketing,' 'partner marketing,' ...") with concrete trigger phrases — exactly anchor 5, and far above the anchor 3 case where 'when' is only weakly implied.

Trigger Term Quality

Nine natural trigger phrases including synonyms ("co-marketing," "partner marketing," "cross-promotion," "co-brand") and a natural user question ("who should we partner with"). This is comprehensive natural-term coverage matching anchor 5, clearly above anchor 4's "a few natural terms missing."

Distinctiveness Conflict Risk

Occupies a clear niche with distinct triggers, and closes with explicit boundary routing ("For customer referral programs, see referrals. For launch-specific partnerships, see launch."), minimizing conflict with adjacent skills. Matches anchor 5; anchor 4's "minor overlap risk" understates the deliberate disambiguation.