p9: expose skills/ directory and add skill tool scripts

Serve /skills/<name>.md via pkg/skills (read-only, refreshes from disk
on each read). Add discover_skill.sh and load_skill.sh tool scripts
that read from the 9P mount.

internal/p9/server.go

@@ -33,6 +33,7 @@ import (
 	"ollie/pkg/agent"
 	"ollie/pkg/backend"
 	"ollie/pkg/config"
+	"ollie/pkg/skills"
 	"ollie/pkg/tools"
 	"ollie/pkg/tools/execute"
 	"ollie/pkg/tools/file"
@@ -199,10 +200,17 @@ func (s *Server) pathType(path string) string {
 		return "dir"
 	case len(parts) == 1 && parts[0] == "prompts":
 		return "dir"
+	case len(parts) == 1 && parts[0] == "skills":
+		return "dir"
 	case len(parts) == 2 && parts[0] == "prompts":
 		if _, err := os.Stat(s.promptsDir + "/" + parts[1]); err == nil {
 			return "file"
 		}
+	case len(parts) == 2 && parts[0] == "skills":
+		name := strings.TrimSuffix(parts[1], ".md")
+		if _, err := skills.Read(name); err == nil {
+			return "file"
+		}
 	case len(parts) == 2 && parts[0] == "s":
 		s.mu.RLock()
 		_, ok := s.sessions[parts[1]]
@@ -367,6 +375,25 @@ func (s *Server) read(cs *connState, fc *plan9.Fcall) *plan9.Fcall {
 		return &plan9.Fcall{Type: plan9.Rread, Tag: fc.Tag, Count: uint32(len(data)), Data: data}
 	}
 
+	// Skill files are served via pkg/skills (reads from disk each time).
+	if strings.HasPrefix(path, "/skills/") {
+		name := strings.TrimSuffix(pathBase(path), ".md")
+		content, err := skills.Read(name)
+		if err != nil {
+			return errFcall(fc, err.Error())
+		}
+		var data []byte
+		off := int(fc.Offset)
+		if off < len(content) {
+			end := off + int(fc.Count)
+			if end > len(content) {
+				end = len(content)
+			}
+			data = content[off:end]
+		}
+		return &plan9.Fcall{Type: plan9.Rread, Tag: fc.Tag, Count: uint32(len(data)), Data: data}
+	}
+
 	content := s.readFile(path)
 	var data []byte
 	off := int(fc.Offset)
@@ -849,6 +876,7 @@ func (s *Server) readDir(path string, offset uint64, count uint32) []byte {
 		dirs = append(dirs, makeDir("ctl", "/ctl", false, 0200))
 		dirs = append(dirs, makeDir("prompts", "/prompts", true, plan9.DMDIR|0555))
 		dirs = append(dirs, makeDir("s", "/s", true, plan9.DMDIR|0555))
+		dirs = append(dirs, makeDir("skills", "/skills", true, plan9.DMDIR|0555))
 	} else if path == "/prompts" {
 		entries, _ := os.ReadDir(s.promptsDir)
 		for _, e := range entries {
@@ -856,6 +884,11 @@ func (s *Server) readDir(path string, offset uint64, count uint32) []byte {
 				dirs = append(dirs, makeDir(e.Name(), "/prompts/"+e.Name(), false, 0666))
 			}
 		}
+	} else if path == "/skills" {
+		for _, m := range skills.List() {
+			name := m.Name + ".md"
+			dirs = append(dirs, makeDir(name, "/skills/"+name, false, 0444))
+		}
 	} else if path == "/s" {
 		s.mu.RLock()
 		for id := range s.sessions {
@@ -944,6 +977,8 @@ func (s *Server) makeStat(path string) plan9.Dir {
 		default:
 			if strings.HasPrefix(path, "/prompts/") {
 				mode = 0666
+			} else if strings.HasPrefix(path, "/skills/") {
+				mode = 0444
 			} else {
 				mode = 0444
 			}

mkfile

@@ -6,6 +6,8 @@ build:V:
 	go build -o $INSTALL_PATH/olliesrv .
 
 install:V: build
+	mkdir -p $HOME/.local/share/ollie/tools
+	cp -f tools/* $HOME/.local/share/ollie/tools/
 
 clean:V:
 	rm -f $INSTALL_PATH/olliesrv

tools/discover_skill.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+# description: Discover available skills by keyword
+set -euo pipefail
+
+if [ $# -ne 1 ]; then
+  echo "Usage: discover_skill <keyword>" >&2
+  exit 1
+fi
+
+OLLIE="${OLLIE_9MOUNT:-$HOME/mnt/ollie}"
+keyword="$1"
+results=""
+
+for file in "$OLLIE/skills"/*.md; do
+  [ -f "$file" ] || continue
+  name=$(basename "$file" .md)
+  if grep -qi "$keyword" "$file"; then
+    desc=$(grep -m1 '^description:' "$file" | sed 's/^description: *//')
+    results="${results:+$results
+}$name	$desc"
+  fi
+done
+
+if [ -n "$results" ]; then
+  echo "$results" | sort -u
+else
+  echo "No skills found matching: $keyword"
+fi

tools/load_skill.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+# description: Load a skill's SKILL.md by name
+set -euo pipefail
+
+if [ $# -lt 1 ]; then
+  echo "Usage: load_skill <skill-name> [skill-name...]" >&2
+  exit 1
+fi
+
+OLLIE="${OLLIE_9MOUNT:-$HOME/mnt/ollie}"
+
+for arg in "$@"; do
+  name="${arg##*/}"
+  cat "$OLLIE/skills/${name}.md"
+done