Conciseness

The body is dense and lean — checklists, tables, and templates with no explanation of concepts Claude already knows (no "what is Twitter" padding). It falls short of 5 because guidance is repeated: "No links in tweet body (kills reach)" appears in the tweet rules, the algorithm table, "What kills reach", and Common Pitfalls, and Step 4's signal table duplicates references/algorithm-signals.md.

Actionability

Copy-paste ready commands throughout ("python3 scripts/profile_auditor.py --handle @username", "site:x.com \"topic\" min_faves:100"), concrete tweet templates ("10 tools I use daily:\n\n1. X — for Y"), a cadence table quantified by account size, and a week-by-week playbook. Specific examples cover the common cases; a 4 would require missing key details, which are absent.

Workflow Clarity

Steps 1-6 are clearly sequenced (audit → competitive intel → content → algorithm → playbook → calendar) with concrete commands at each stage and a feedback loop in Week 3-4 ("Review what formats got most engagement... Double down on top 2"). Not 5: there are no explicit validation checkpoints (e.g., verifying the audit was completed before moving to content creation); not 3, since sequence and a review loop are present — this is not a destructive/batch skill so no cap applies.

Progressive Disclosure

Sections and the Scripts table are well organized and all script paths resolve to real files, but references/algorithm-signals.md is never linked from the body ("Buried" reference — orphaned), and its content is duplicated inline in Step 4's "What X rewards" table. This matches anchor 3 ("references present but not clearly signaled; content that should be separate is inline") rather than 4, which requires references to be mostly clear with only minor organization gaps.

Specificity

"building audience, crafting viral content, and analyzing engagement" plus the capability list "algorithm mechanics, thread engineering, reply strategy, profile optimization, and competitive intelligence" names multiple specific concrete actions with comprehensive coverage of the skill's scope. It matches the 5 anchor ("Extract text and tables from PDF files, fill forms, merge documents"-style completeness) rather than 4, which would require noticeable coverage gaps.

Completeness

The "what" is explicit ("X/Twitter growth engine for building audience, crafting viral content, and analyzing engagement") and the "when" is explicit with concrete trigger phrases ("Use when the user wants to grow on X/Twitter, write tweets or threads, analyze their X profile, research competitors on X, plan a posting strategy, or optimize engagement"). This exactly matches the 5 anchor's what+when pattern; a 4 would require a vaguer 'when' clause.

Trigger Term Quality

"grow on X/Twitter, write tweets or threads, analyze their X profile, research competitors on X, plan a posting strategy, or optimize engagement" gives good natural-phrase coverage including the X/Twitter synonym pair. It is below 5 because common user terms like "followers", "viral", and "post" are only partially covered (viral appears once; followers/impressions never).

Distinctiveness Conflict Risk

"Complements social-content (generic multi-platform) with X-specific depth" explicitly disambiguates from the closest overlapping skills, and the X/Twitter niche triggers (tweets, threads, X profile) are distinct. Minimal conflict risk, matching the 5 anchor's clear-niche pattern; 4 would leave overlap unaddressed.