Add live OpenCode smoke skill

skills/opencode-live-smoke/SKILL.md

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+---
+name: opencode-live-smoke
+description: Run live OpenCode smoke tests for opencode-dynamic-subagents against a real project by temporarily switching the local OpenCode plugin source to either the local dist build or the published npm package, executing a subagent-read prompt, and restoring config afterward.
+---
+
+# OpenCode Live Smoke
+
+Use this skill when you need to verify the plugin in a real OpenCode run, not just unit tests.
+
+## When To Use
+
+- Before publishing a plugin change
+- After publishing a new npm version
+- When debugging real subagent behavior in OpenCode
+- When checking whether a project path is treated as internal or external
+
+## Workflow
+
+1. Choose the target project root and a file inside that project.
+2. Choose `local` before publish or `npm` after publish.
+3. Run the helper script:
+
+```bash
+skills/opencode-live-smoke/scripts/run-live-smoke.sh \
+  --project /absolute/project/root \
+  --file /absolute/project/root/path/to/file.tsx \
+  --source local
+```
+
+For npm validation:
+
+```bash
+skills/opencode-live-smoke/scripts/run-live-smoke.sh \
+  --project /absolute/project/root \
+  --file /absolute/project/root/path/to/file.tsx \
+  --source npm
+```
+
+## What The Script Does
+
+- Validates the project root and target file
+- Uses the local built entrypoint for `local`, or `opencode-dynamic-subagents@<package.json version>` for `npm`
+- Temporarily rewrites `~/.config/opencode/opencode.jsonc`
+- Runs:
+
+```bash
+opencode run --print-logs --agent build "Use a subagent to read <file> and return only the first non-empty line."
+```
+
+- Restores the original OpenCode config on exit
+
+## Expected Result
+
+- OpenCode loads the plugin successfully
+- A subagent task is launched
+- The response returns the first non-empty line from the target file
+
+## Notes
+
+- Prefer a file inside the exact project root passed to `--project`
+- `local` mode runs `npm run build` in this repo before testing
+- If the run hangs or prompts unexpectedly, inspect the emitted logs before retrying

skills/opencode-live-smoke/scripts/run-live-smoke.sh

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+#!/bin/sh
+set -eu
+
+usage() {
+  cat <<'EOF'
+Usage:
+  run-live-smoke.sh --project /abs/project/root --file /abs/file/in/project --source local|npm
+EOF
+}
+
+PROJECT=""
+TARGET_FILE=""
+SOURCE=""
+
+while [ "$#" -gt 0 ]; do
+  case "$1" in
+    --project)
+      PROJECT="${2:-}"
+      shift 2
+      ;;
+    --file)
+      TARGET_FILE="${2:-}"
+      shift 2
+      ;;
+    --source)
+      SOURCE="${2:-}"
+      shift 2
+      ;;
+    -h|--help)
+      usage
+      exit 0
+      ;;
+    *)
+      echo "Unknown argument: $1" >&2
+      usage >&2
+      exit 1
+      ;;
+  esac
+done
+
+if [ -z "$PROJECT" ] || [ -z "$TARGET_FILE" ] || [ -z "$SOURCE" ]; then
+  usage >&2
+  exit 1
+fi
+
+case "$SOURCE" in
+  local|npm) ;;
+  *)
+    echo "--source must be 'local' or 'npm'" >&2
+    exit 1
+    ;;
+esac
+
+if ! command -v opencode >/dev/null 2>&1; then
+  echo "opencode is not installed or not on PATH" >&2
+  exit 1
+fi
+
+SCRIPT_DIR="$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)"
+SKILL_DIR="$(CDPATH= cd -- "$SCRIPT_DIR/.." && pwd)"
+REPO_ROOT="$(CDPATH= cd -- "$SKILL_DIR/../.." && pwd)"
+CONFIG_PATH="$HOME/.config/opencode/opencode.jsonc"
+
+if [ ! -d "$PROJECT" ]; then
+  echo "Project root not found: $PROJECT" >&2
+  exit 1
+fi
+
+if [ ! -f "$TARGET_FILE" ]; then
+  echo "Target file not found: $TARGET_FILE" >&2
+  exit 1
+fi
+
+case "$TARGET_FILE" in
+  "$PROJECT"/*) ;;
+  *)
+    echo "Target file must live under the provided project root" >&2
+    exit 1
+    ;;
+esac
+
+if [ ! -f "$CONFIG_PATH" ]; then
+  echo "OpenCode config not found: $CONFIG_PATH" >&2
+  exit 1
+fi
+
+BACKUP_PATH="$(mktemp "${TMPDIR:-/tmp}/opencode.jsonc.XXXXXX")"
+cp "$CONFIG_PATH" "$BACKUP_PATH"
+cleanup() {
+  cp "$BACKUP_PATH" "$CONFIG_PATH"
+  rm -f "$BACKUP_PATH"
+}
+trap cleanup EXIT INT TERM
+
+if [ "$SOURCE" = "local" ]; then
+  (cd "$REPO_ROOT" && npm run build >/dev/null)
+  PLUGIN_SPEC="$REPO_ROOT/dist/entrypoint.js"
+else
+  VERSION="$(node -p "require('$REPO_ROOT/package.json').version")"
+  PLUGIN_SPEC="opencode-dynamic-subagents@$VERSION"
+fi
+
+node <<'EOF' "$CONFIG_PATH" "$PLUGIN_SPEC"
+const fs = require("node:fs")
+
+const [configPath, pluginSpec] = process.argv.slice(1)
+const text = fs.readFileSync(configPath, "utf8")
+const next = text.replace(
+  /"(opencode-dynamic-subagents@[^"]+|\/Users\/cgas\/Documents\/Projects\/OpenCodePlugins\/opencode-dynamic-subagents\/dist\/entrypoint\.js)"/g,
+  JSON.stringify(pluginSpec),
+)
+
+if (next === text) {
+  throw new Error("Could not find an opencode-dynamic-subagents plugin entry in opencode.jsonc")
+}
+
+fs.writeFileSync(configPath, next)
+EOF
+
+PROMPT="Use a subagent to read $TARGET_FILE and return only the first non-empty line."
+cd "$PROJECT"
+opencode run --print-logs --agent build "$PROMPT"