update ai prompt for external runner creation

README.md

@@ -79,6 +79,7 @@ Additional keymaps:
 ## Runner architecture
 
 Runners are standalone Lua modules. All runner modules are expected to implement the full interface so every command and keymap works.
+All functions are required (including the previously optional ones) and listing output must be streamed.
 Required functions:
 
 - `is_test_file`
@@ -87,6 +88,9 @@ Required functions:
 - `build_file_command`
 - `build_all_command`
 - `build_failed_command`
+- `parse_results`
+- `output_parser` (must stream listing output via `on_line`)
+- `parse_test_output`
 - `collect_failed_locations`
 
 No runner for your environment exists? No problem: use `runners-agents.md` to guide an AI-assisted runner implementation tailored to your stack.
@@ -100,6 +104,8 @@ No runner for your environment exists? No problem: use `runners-agents.md` to gu
 
 ## Development
 
+Runner development guidelines, including required data formats for keymaps, tests (`run_test.sh`), and Gitea CI (Neovim AppImage on ARM runners), are documented in `runner-agents.md`.
+
 Tests are written with `plenary.nvim` / `busted`. Mocks and stubs are allowed.
 
 Run tests: