Conciseness

Every section earns its place: the threshold rule, the column schema, a good/bad driver example, sourcing guidance, and the output spec — with zero padding and no explanation of concepts Claude already knows. Matches the 'lean and efficient; every token earns its place' anchor.

Actionability

Guidance is concrete: exact flag logic with a default ('default 5% of the line or a fixed floor'), an explicit table schema, an example driver sentence, and a fallback phrase ('driver unclear — flag for controller'). The unspecified 'fixed floor' value keeps it from fully-executable 5, but it is well above the 3-anchor's pseudocode level.

Workflow Clarity

The sequence is clear and ordered (apply threshold → source driver via internal-gl MCP → build table → narrative) with an explicit error-recovery fallback for unclear drivers. It lacks a numeric verification step (e.g., recomputing Δ amounts/percentages before writing), which is the minor validation gap of the 4-anchor.

Progressive Disclosure

The skill is under 50 lines, single-purpose, needs no external references, and no bundle files exist; sections (Threshold, For each flagged line, Sourcing the driver, Output) are well organized. Per the simple-skill guideline this scores 5.

Specificity

The description states concrete scope and mechanics — 'for every P&L and balance-sheet line over threshold', 'current vs prior period and vs budget, with the driver explained from underlying activity'. It describes one task with several specific components rather than the multiple distinct actions of the 5-anchor, and the output format (table + narrative) is unstated, so it sits at 4.

Completeness

Both halves are explicit: the what ('Write flux commentary for every P&L and balance-sheet line over threshold — current vs prior period and vs budget, with the driver explained') and the when ('Use for the month-end close package and management reporting'), matching the 5-anchor pattern.

Trigger Term Quality

Good natural finance keywords: 'P&L', 'balance-sheet', 'budget', 'month-end close package', 'management reporting'. It misses the most common synonym 'variance' (the skill's own body title is 'Variance commentary'), so it falls short of the comprehensive synonym coverage of the 5-anchor.

Distinctiveness Conflict Risk

A clear niche — flux/variance commentary for the close package — with distinct finance-specific triggers; minimal overlap risk with generic reporting or spreadsheet skills.