chore: import upstream snapshot with attribution

2026-07-13 12:30:22 +08:00
commit 36fb403ae1
281 changed files with 80074 additions and 0 deletions
@@ -0,0 +1,32 @@
+import type { AgentDef } from '../types.js';
+
+/**
+ * OpenCode def (`opencode`, by SST — sst/opencode, npm `opencode-ai`).
+ *
+ * Unlike the `--print`-style CLIs, OpenCode's non-interactive entry is the
+ * `run` SUBCOMMAND, not a flag. `opencode run` takes the message as a
+ * positional arg or on stdin (non-TTY stdin is prepended to the prompt), runs
+ * the session, and exits when idle. We pipe the prompt via stdin.
+ *
+ * Output: default stdout is an event-stream of text (not JSON unless you pass
+ * `--format json`), so plain mode captures it and the extractor reads the
+ * fenced ```html``` block.
+ *
+ * Note: in non-interactive mode OpenCode tightens permissions by default
+ * (question/plan: deny). Our chat-to-HTML flow only needs the model to emit
+ * text + an html block — no file edits — so the default is fine. If a future
+ * mode needs the agent to write files, add `--dangerously-skip-permissions`.
+ */
+export const opencode: AgentDef = {
+  id: 'opencode',
+  name: 'OpenCode',
+  bin: 'opencode',
+  versionArgs: ['--version'],
+  buildArgs(_prompt, _ctx) {
+    // `run` is the headless subcommand; prompt arrives via stdin.
+    return ['run'];
+  },
+  streamFormat: 'plain',
+  promptViaStdin: true,
+  installUrl: 'https://opencode.ai/docs',
+};