Conciseness

The body is lean and every token earns its place: it contains only Aside-specific facts Claude could not know ('120-second timeout; `page` starts unset, so call `openTab(url)` or `getTabs()` first') with no padding or explanation of known concepts. Version sensitivity is handled with an explicit fallback ('Flag and tool names here reflect one observed version; if a probe or a call fails, treat Aside as absent') rather than a pinned version number.

Actionability

For an instruction-only skill the guidance is fully concrete: copy-paste ready commands ('moai mcp add aside --command aside --args mcp --scope user', 'aside --version', 'aside skills install') and specific executable rules ('Prefer to omit `--permission` entirely', 'restrict REPL work to navigation, reading, and screenshot operations', 'Redirect verbose REPL output to a file and bring only the exit code and a bounded tail into context') cover the common cases.

Workflow Clarity

This is a simple single-purpose skill under 50 lines whose action is unambiguous, and validation checkpoints are present rather than missing: an availability probe ('aside --version'), a failure fallback ('if a probe or a call fails, treat Aside as absent'), a silent-continue path when excluded ('for example when `CI=true`'), and mandatory operator confirmation before any state-changing step. Because verification steps exist, the destructive-operation cap at 3 does not apply.

Progressive Disclosure

The skill has no bundle files (references/, scripts/, and assets/ do not exist) and the body contains no dangling file references, so nothing needs external splitting. At under 50 lines with clear, well-organized sections (Purpose, When to use, Who operates it, Safe-use rules, Optional registration, Relation to /moai e2e) it qualifies for 5 under the rubric's simple-skill provision.

Specificity

The description names the concrete artifact ('the optional Aside browser agent (the `aside` command-line tool and its MCP server)') and enumerates several specific coverage areas ('when the orchestrator may use it, how its permission modes work, and the rules that keep it read-only by default'). It lists several specific actions with minor gaps (the exec/repl tools and the e2e entry point are not mentioned), matching anchor 4 rather than the comprehensive coverage of anchor 5 or the 1-2 actions of anchor 3.

Completeness

The 'what' is clear (safe-use reference covering permission modes and read-only rules for the Aside browser agent), but the only trigger guidance is negative: 'NOT for: public pages that a plain fetch can read, subagent work, or CI runs'. Per the judging guideline, a missing positive 'Use when...' clause or equivalent explicit trigger guidance caps completeness at 3; the positive triggers exist only in the separate when_to_use field, not the description.

Trigger Term Quality

Natural keywords are present with synonyms for the tool: 'Aside browser agent', '`aside` command-line tool', 'MCP server', 'logged-in browser'. Coverage is good but a few natural terms a user might say (e.g., 'e2e', 'browser automation', 'aside MCP') are missing from the description, so it fits anchor 4 rather than the comprehensive synonym coverage of anchor 5.

Distinctiveness Conflict Risk

It targets a clearly named niche tool ('the optional Aside browser agent (the `aside` command-line tool and its MCP server)') and explicitly excludes overlapping contexts ('NOT for: public pages that a plain fetch can read, subagent work, or CI runs'), giving it distinct triggers with minimal conflict risk, matching anchor 5.