Files
ponytail/.opencode/plugins/ponytail.mjs
DietrichGebert e368c48c52 feat: scope npm package as @dietrichgebert/ponytail (#280)
Publish under a scope you own outright instead of opencode-ponytail (which
sits on a third-party npm account). Matches the GitHub handle and repo.
publishConfig.access is already public, which scoped public packages need.
2026-06-24 02:50:42 +02:00

101 lines
3.8 KiB
JavaScript

// ponytail — OpenCode plugin.
//
// Injects the ponytail ruleset into every chat's system prompt at the active
// intensity, persists /ponytail mode switches, and registers slash commands so
// they work when the package is installed from npm. Reuses the shared
// instruction builder so Claude Code, Codex, pi, and OpenCode all read one
// source of truth.
//
// OpenCode loads this as a server plugin — add it to your opencode.json:
// { "plugin": ["@dietrichgebert/ponytail"] }
import { createRequire } from 'module';
import fs from 'fs';
import os from 'os';
import path from 'path';
import { fileURLToPath } from 'url';
const __dirname = path.dirname(fileURLToPath(import.meta.url));
// The shared instruction builder is CommonJS; bridge to it from this ES module.
const require = createRequire(import.meta.url);
const { getPonytailInstructions } = require('../../hooks/ponytail-instructions');
const { getDefaultMode, normalizePersistedMode } = require('../../hooks/ponytail-config');
// OpenCode has no flag-file convention of its own; keep mode beside its config.
const statePath = path.join(
process.env.XDG_CONFIG_HOME || path.join(os.homedir(), '.config'),
'opencode',
'.ponytail-active',
);
function readMode() {
try {
return normalizePersistedMode(fs.readFileSync(statePath, 'utf8').trim()) || getDefaultMode();
} catch (e) {
return getDefaultMode();
}
}
function writeMode(mode) {
fs.mkdirSync(path.dirname(statePath), { recursive: true });
fs.writeFileSync(statePath, mode);
}
export function parseCommandFile(filePath) {
const content = fs.readFileSync(filePath, 'utf8');
// Tolerate CRLF: a Windows checkout (autocrlf) delivers \r\n, npm ships \n.
const match = content.match(/^---\r?\n([\s\S]*?)\r?\n---\r?\n([\s\S]*)$/);
if (!match) return null;
const description = match[1].match(/description:\s*(.+)/)?.[1]?.trim();
return { description, template: match[2].trim() };
}
export default async ({ client } = {}) => {
const log = (level, message) => {
try { client && client.app && client.app.log({ body: { service: 'ponytail', level, message } }); } catch (e) {}
};
const ponytailSkillsDir = path.resolve(__dirname, '../../skills');
return {
// Register slash commands + skills directory.
config: async (config) => {
if (!config.command) config.command = {};
const commandDir = path.join(__dirname, '..', 'command');
try {
for (const file of fs.readdirSync(commandDir).filter((f) => f.endsWith('.md'))) {
const name = path.basename(file, '.md');
const parsed = parseCommandFile(path.join(commandDir, file));
if (parsed) config.command[name] = parsed;
}
} catch (e) {}
config.skills = config.skills || {};
config.skills.paths = config.skills.paths || [];
if (!config.skills.paths.includes(ponytailSkillsDir)) {
config.skills.paths.push(ponytailSkillsDir);
}
},
// Append the ruleset to the system prompt every turn.
'experimental.chat.system.transform': async (_input, output) => {
const mode = readMode();
if (mode === 'off') return;
output.system.push(getPonytailInstructions(mode));
},
// Persist `/ponytail <level>` so the next turn's injection follows it.
// ponytail: mode applies from the next message, not the current one — the
// transform reads the flag the command writes. Good enough; switch to a
// synchronous store if same-turn switching ever matters.
'command.execute.before': async (input) => {
if (!input || input.command !== 'ponytail') return;
// `off` is persisted like any mode; the transform reads it and stays silent.
const mode = normalizePersistedMode((input.arguments || '').trim()) || getDefaultMode();
writeMode(mode);
log('info', 'ponytail ' + mode);
},
};
};