Amp Orb setup

.agents/resume

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# Runs on every orb wake. Nothing to authenticate or reconnect; just confirm the
+# toolchain from .agents/setup still resolves so a broken snapshot fails loudly.
+set -euo pipefail
+
+repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+eval "$("$HOME/.local/bin/mise" -C "$repo_root" env -s bash)"
+node --version
+pnpm --version

.agents/setup

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+# Prepares a fresh Amp orb: the Node and pnpm versions pinned in .tool-versions,
+# then the pnpm dependencies. Idempotent: Amp reruns it on stale snapshots.
+set -euo pipefail
+
+repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$repo_root"
+
+step() { printf '\n==> %s (%s)\n' "$1" "$(date +%T)"; }
+
+mise_bin="$HOME/.local/bin/mise"
+step "Install mise"
+if [ ! -x "$mise_bin" ]; then
+	curl -fsSL https://mise.run | sh
+fi
+
+step "Install pinned toolchain from .tool-versions"
+"$mise_bin" install --yes
+# The installer cannot change this running script's environment.
+eval "$("$mise_bin" env -s bash)"
+
+step "Expose the toolchain to login shells"
+profile_marker="# sourcegraph/docs: pinned Node and pnpm from mise"
+if ! grep -Fqx "$profile_marker" "$HOME/.bash_profile" 2>/dev/null; then
+	cat >>"$HOME/.bash_profile" <<EOF
+
+$profile_marker
+[ -d "$repo_root" ] && eval "\$("$mise_bin" -C "$repo_root" env -s bash)"
+EOF
+fi
+
+step "Install dependencies"
+# CI=true: without a TTY, pnpm otherwise aborts if a stale snapshot's
+# node_modules was built by a different pnpm version and must be recreated.
+CI=true pnpm install --frozen-lockfile
+
+step "Write orb agent guidance"
+mkdir -p "$HOME/.config/amp"
+cat >"$HOME/.config/amp/AGENTS.md" <<'EOF'
+# Inside the Orb
+
+- Node and pnpm come from mise (`.tool-versions`); `.agents/setup` puts them on PATH for login shells. Use `pnpm`, not `npm`.
+- Dev server: `amp orb services ensure` starts `pnpm dev` from `.amp/services.yaml` and returns a portal link.
+EOF
+
+step "Done: node $(node --version), pnpm $(pnpm --version)"

.amp/services.yaml

@@ -0,0 +1,7 @@
+services:
+  docs:
+    command: pnpm dev --hostname 0.0.0.0 --port "$PORT"
+    health: /
+    portal:
+      url: /
+      title: Sourcegraph Docs

.gitignore

@@ -52,4 +52,7 @@ public/changelog.rss
 # env file
 .env
 
+# amp orb portal state
+.amp/portals/
+
 public/technical-changelog.rss