Conciseness

The 24-line ASCII box rendering of the preservation tiers is padded decoration — the same three-tier list fits in half the lines without box-drawing characters. The rest of the body is lean, but a full section of formatting overhead goes beyond the 'minor instances' of level 4, while the absence of concept explanations keeps it above level 2.

Actionability

The Quick Start code is concrete and importable ('from scripts.compactor import ContextCompactor', 'compactor.should_compact(context, limit=100000)') against the real module, but 'context' is an undefined abstract variable and the Compaction Process steps are high-level directives with no executable invocation, leaving minor gaps below level 5.

Workflow Clarity

The five-step Compaction Process is clearly sequenced and ends with an explicit Validate step, satisfying the batch-operation validation requirement; the checkpoint is vague ('Ensure compacted context is coherent' with no concrete check or feedback loop), which matches level 4's 'most checkpoints present; minor validation gaps' rather than level 5's validate/re-validate loop.

Progressive Disclosure

Structure is present with clearly labeled References and Scripts sections and one-level-deep pointers, but 'references/TOKEN-BUDGETS.md' does not exist in the bundle — a dangling reference — and its would-be content (the Token Budgets table) is inlined in the body, matching level 3's 'references present but [imperfect]; content that should be separate is inline' rather than level 4's mostly-clear references.

Specificity

Names the domain precisely ('Automatic context summarization for long-running sessions') but states only one concrete action; capabilities the body reveals (importance scoring, tiered token-budget thresholds, discarding stale content) are absent, matching the '1-2 concrete actions, not comprehensive' anchor rather than the 'several specific actions' of level 4.

Completeness

Explicitly answers both 'what' ('Automatic context summarization for long-running sessions') and 'when' with a multi-trigger 'Use when...' clause of concrete phrases, mirroring the anchor-5 example's structure; the 'when' is more explicit and specific than the anchor-4 example.

Trigger Term Quality

Good keyword coverage across four distinct trigger scenarios ('context is approaching limits', 'summarizing completed work', 'preserving critical information', 'managing token budgets'), but natural synonyms like 'context window', 'compact', or 'summarize the conversation' are missing, falling short of level 5's comprehensive synonym coverage.

Distinctiveness Conflict Risk

The compaction-for-long-sessions niche is mostly distinct with unlikely misfires, but 'summarizing completed work' and 'preserving critical information' could overlap with general summarization or memory/notes skills, matching 'minor overlap risk with closely related skills' rather than level 5's minimal conflict risk.