Overhaul the Claude-driven docs PR review pipeline (v1)

.claude/commands/docs-review/SKILL.md

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+---
+name: docs-review
+description: Review docs and blog post quality before committing (style, accuracy, Pulumi best practices). Use when you've made content changes locally and want a quality pass on open files, the current branch, or a specific PR — outputs to the conversation, never posts to GitHub.
+user-invocable: true
+---
+
+# Docs Review (interactive)
+
+Output goes into the conversation. This skill never posts to GitHub.
+
+## Usage
+
+`/docs-review [PR_NUMBER]`
+
+If `PR_NUMBER` is provided, review the PR via `gh pr view` / `gh pr diff`. If omitted, auto-detect scope from the current IDE/terminal context.
+
+## Scope detection (when no PR number is provided)
+
+Walk these steps in order; stop at the first that yields a scope.
+
+1. **Open files in the IDE.** Check the conversation context for system reminders that list open files. If any are present, treat those files as the scope.
+2. **Uncommitted changes.** Check the gitStatus block (or run `git status`) for modified (`M`) and untracked (`??`) files. Use `git diff` and read the affected files.
+3. **Branch changes vs. master:**
+
+    ```bash
+    git diff $(git merge-base --fork-point master HEAD)...HEAD
+    ```
+
+    If `--fork-point` fails (no reflog), fall back to `git diff $(git merge-base master HEAD)...HEAD`. Review every changed file in the branch.
+
+## Performing the review
+
+Route each file to a domain via `docs-review:references:domain-routing`, then apply that domain's criteria plus `docs-review:references:shared-criteria`. Render the output per `docs-review:references:output-format`.
+
+For files under `content/docs/` or `content/blog/`, also run Vale and surface its findings under ⚠️ Low-confidence as `[style] <category> — <message>` per the render contract in `docs-review:references:output-format`. Pipe through the categorize filter so the JSON has a deterministic `category` field — never surface the raw rule name:
+
+```bash
+vale --no-exit --output=JSON <files> > /tmp/vale-raw.json
+python3 .claude/commands/docs-review/scripts/vale-findings-filter.py \
+    --in /tmp/vale-raw.json --out /tmp/vale-findings.json
+# Render bullets from /tmp/vale-findings.json: use .category, not .rule.
+```
+
+Omit `--pr` in interactive mode (no diff to intersect; the filter accepts all findings, categorizes, caps). If `vale --version` fails or `vale` is not on PATH, skip the Vale step with a one-line note (e.g., "Skipping Vale: not installed. Install via `mise install` to enable style nits.") and continue the review without Vale findings — don't hard-fail.
+
+For PR-number invocations:
+
+```bash
+gh pr view {{arg}} --json title,body,files,additions,deletions,labels
+gh pr diff {{arg}}
+```
+
+Format for terminal display. Include the scope in the summary, and offer to broaden if useful.