Conciseness

The body is largely lean — project-specific knowledge like 'The section lists only dependencies changed this release cycle' and 'The default tools root (/opt/rstudio-tools/...) requires elevated privileges' earns its place — but a few sentences explain what Claude already knows (e.g. 'The `trap` ensures the temp directory is cleaned up whether the install succeeds or fails', 'The upload script needs working AWS access, and discovering a credential problem after editing files wastes effort'). These are minor instances of over-explanation that could be trimmed, matching the anchor for 4 rather than the every-token-earns-its-place level of 5.

Actionability

Nearly every step is copy-paste ready: `git branch --show-current`, the `aws sts get-caller-identity` prerequisite checks, `COPILOT_VERSION="${1:-<VERSION>}"` with the Windows batch variant `set COPILOT_VERSION=<VERSION>`, and the verification recipe using `RSTUDIO_TOOLS_ROOT="$VERIFY_DIR"` with a mktemp/trap pattern. Only 'verify all four files contain the new version string' and 'open a pull request' lack literal commands, yet both are fully specified — this matches the fully-executable, common-cases-covered anchor.

Workflow Clarity

Eight clearly numbered, well-sequenced steps with explicit validation checkpoints throughout: 'If the output is not `main`, **stop immediately**', 'Run these checks and stop if any fail', 'Confirm exit code 0 and the "Successfully uploaded" message', and 'After editing, verify all four files contain the new version string'. Error recovery is addressed (e.g. configure AWS credentials 'and try again', 'If it fails, report the error and stop'), so the batch four-file edit is properly validated — matching the explicit-validation-with-recovery anchor rather than the minor-gaps level of 4.

Progressive Disclosure

This is a single self-contained linear procedure with no bundle files; nothing here warrants splitting into references or scripts — each per-file edit pattern is only a few lines and is appropriately inline under its own `####` heading. Sections are clearly labeled (### 1–8 plus per-file subsections), making navigation trivial, which matches the appropriately-placed, easy-navigation anchor rather than the minor-organization-gaps level of 4.

Specificity

It names the domain precisely ('updating the copilot-language-server version in the RStudio repository') and one concrete action ('bumping to a new release'), but omits the skill's other actions — S3 upload, install verification, PR creation. This matches 'names domain and 1-2 concrete actions, but not comprehensive'; it is not 4 because several specific actions are missing, and not 2 because the domain and action are concrete rather than generic.

Completeness

The 'when' is explicit and concrete ('Use when updating the copilot-language-server version in the RStudio repository'), satisfying the trigger-guideline requirement. The 'what' is present but only implied through the trigger clause — the actual work (update pinned version across files, upload to S3, verify, open PR) is not stated — so it sits at 'has both what and when' with the what less explicit than the 5 anchor's separate, concrete statement.

Trigger Term Quality

'updating the copilot-language-server version' and 'bumping to a new release' are phrases a user would naturally say when needing this skill. Coverage is good but misses common variations such as 'upgrade copilot' or a concrete version-number example, so it fits 'good keyword coverage; a few natural terms missing' rather than the comprehensive synonym coverage of 5.

Distinctiveness Conflict Risk

'copilot-language-server version in the RStudio repository' is a narrow, unambiguous niche, reinforced by the explicit platform boundary 'This skill is for macOS and Linux only.' No plausible competing skill would trigger on this description, matching the clear-niche, minimal-conflict anchor.