Fix skill frontmatter and simplify distill skill instructions

Replace non-ASCII characters in log and distill-best-practices
frontmatter that silently prevented skill loading. Simplify distill
skill instructions. Update install.sh for new skills.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

skills/distill-best-practices/SKILL.md

@@ -3,7 +3,7 @@ name: distill-best-practices
 description: >
   Cross-project best practices distillation. Reads changed memory files from all tracked
   projects and proposes additions, updates, or removals to claude-foundations/best-practices/.
-  Run from any project — always targets claude-foundations as output. Interactive — presents
+  Run from any project -- always targets claude-foundations as output. Interactive -- presents
   proposals for approval before making changes.
 allowed-tools: Read, Edit, Write, Glob, Grep, Bash(git -C *), Bash(git rev-parse *), Bash(ls *), Bash(cat *), Bash(head *), Bash(date *)
 ---
@@ -14,47 +14,30 @@ You are extracting generalisable best practices from project-specific memory fil
 
 ## Pre-gathered context
 
-### CLAUDE_PROJECT_ROOT
-!`test -n "$CLAUDE_PROJECT_ROOT" && echo "$CLAUDE_PROJECT_ROOT" || echo "NOT_SET"`
-
-### Distill state
-!`cat $CLAUDE_PROJECT_ROOT/projects/claude-foundations/best-practices/.distill-state.json 2>/dev/null || echo "{}"`
-
-### Settings
-!`cat $CLAUDE_PROJECT_ROOT/projects/claude-foundations/settings.yaml 2>/dev/null || echo "Settings not found — CLAUDE_PROJECT_ROOT may not be set"`
-
-### Current best-practices index
-!`cat $CLAUDE_PROJECT_ROOT/projects/claude-foundations/BESTPRACTICES.md 2>/dev/null || echo "Index not found"`
-
-### Available best-practices files
-!`ls -1 $CLAUDE_PROJECT_ROOT/projects/claude-foundations/best-practices/ 2>/dev/null || echo "No best-practices directory"`
-
-### Projects directory listing
-!`ls -1d $CLAUDE_PROJECT_ROOT/projects/*/ 2>/dev/null || echo "No projects directory"`
+### Pre-gathered context (read at runtime)
+The following files should be read using the Read tool at the start of execution:
+- `~/dev/claude/projects/claude-foundations/best-practices/.distill-state.json` — Distill state (if not found, treat as `{}`)
+- `~/dev/claude/projects/claude-foundations/settings.yaml` — Settings (if not found, use defaults from instructions)
+- `~/dev/claude/projects/claude-foundations/BESTPRACTICES.md` — Current best-practices index
+- Use Glob to list `~/dev/claude/projects/claude-foundations/best-practices/*.md` for available topic files
+- Use Glob to list `~/dev/claude/projects/*/` for the projects directory listing
 
 ## Instructions
 
-### Step 0: Detect project root
-
-Check the pre-gathered `CLAUDE_PROJECT_ROOT` value above. If it shows `NOT_SET` or the pre-gathered context is missing:
-
-1. Walk up from the current working directory to find the **highest** parent directory containing a `CLAUDE.md` file — that is the project root.
-2. Use that path as `PROJECT_ROOT` for all subsequent steps.
-
-If `CLAUDE_PROJECT_ROOT` was set, use that value as `PROJECT_ROOT`.
-
-The key paths derived from the root:
-- **Settings**: `<PROJECT_ROOT>/projects/claude-foundations/settings.yaml`
-- **Best practices dir**: `<PROJECT_ROOT>/projects/claude-foundations/best-practices/`
-- **Best practices index**: `<PROJECT_ROOT>/projects/claude-foundations/BESTPRACTICES.md`
-- **Distill state**: `<PROJECT_ROOT>/projects/claude-foundations/best-practices/.distill-state.json`
-
 ### Step 1: Discover changes per project
 
-Read `settings.yaml` (pre-gathered above, or read it now if Step 0 detected the root manually).
+The project root is `~/dev/claude` (hardcoded — change at the top of the `!`command`` blocks if your layout differs).
 
-For each project in `distill.projects`, get its path: `<PROJECT_ROOT>/<projects_dir>/<project_name>`.
-Also process any `distill.extra_projects` entries — these have a `path` field relative to `PROJECT_ROOT`.
+Key paths:
+- **Settings**: `~/dev/claude/projects/claude-foundations/settings.yaml`
+- **Best practices dir**: `~/dev/claude/projects/claude-foundations/best-practices/`
+- **Best practices index**: `~/dev/claude/projects/claude-foundations/BESTPRACTICES.md`
+- **Distill state**: `~/dev/claude/projects/claude-foundations/best-practices/.distill-state.json`
+
+Read `settings.yaml` (pre-gathered above).
+
+For each project in `distill.projects`, get its path: `~/dev/claude/<projects_dir>/<project_name>`.
+Also process any `distill.extra_projects` entries — these have a `path` field relative to `~/dev/claude`.
 
 For each project (from both lists):
 
@@ -126,11 +109,11 @@ For each approved proposal:
 
 If a new best-practices topic file is needed:
 - Create it following the format of existing files (top-level heading, subheadings per entry, 2-6 lines per entry)
-- Add it to `<PROJECT_ROOT>/projects/claude-foundations/BESTPRACTICES.md` with a one-line description
+- Add it to `~/dev/claude/projects/claude-foundations/BESTPRACTICES.md` with a one-line description
 
 ### Step 6: Update distill state
 
-Write `<PROJECT_ROOT>/projects/claude-foundations/best-practices/.distill-state.json`:
+Write `~/dev/claude/projects/claude-foundations/best-practices/.distill-state.json`:
 
 ```json
 {