docs(benchmarks): add Independent benchmarks section (#460)

Curated, plugin-installed third-party runs (KuldeepB19, RicardoCostaGit) with
method, headline, and date, clearly framed as independent corroboration not
official figures. Gives the recurring 'did anyone independent check this?' ask
a canonical home.

Closes #121
Closes #236

.claude-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "ponytail",
-  "version": "4.8.3",
+  "version": "4.8.4",
   "description": "Lazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.",
   "author": {
     "name": "Dietrich Gebert",

.codex-plugin/plugin.json

@@ -1,6 +1,6 @@
 {
   "name": "ponytail",
-  "version": "4.8.3",
+  "version": "4.8.4",
   "description": "Lazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.",
   "author": {
     "name": "Dietrich Gebert",

.devin-plugin/plugin.json

@@ -0,0 +1,13 @@
+{
+  "name": "ponytail",
+  "version": "4.8.4",
+  "description": "Lazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.",
+  "author": {
+    "name": "Dietrich Gebert",
+    "url": "https://github.com/DietrichGebert"
+  },
+  "homepage": "https://github.com/DietrichGebert/ponytail",
+  "repository": "https://github.com/DietrichGebert/ponytail",
+  "license": "MIT",
+  "keywords": ["yagni", "minimalism", "code-review", "productivity"]
+}

.github/plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "ponytail",
   "description": "Lazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.",
-  "version": "4.8.3",
+  "version": "4.8.4",
   "author": {
     "name": "Dietrich Gebert",
     "url": "https://github.com/DietrichGebert"

.openclaw/skills/ponytail/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: ponytail
-description: "Lazy senior dev mode. Forces the simplest, shortest solution that works: YAGNI, stdlib first, no unrequested abstractions."
+description: "Lazy senior dev mode for any coding task (write, refactor, fix, review): YAGNI, stdlib first, no unrequested abstractions. Not for non-coding requests."
 homepage: https://github.com/DietrichGebert/ponytail
 license: MIT
 ---

README.es.md

@@ -15,7 +15,7 @@
   <img src="https://img.shields.io/github/stars/DietrichGebert/ponytail?style=flat-square&color=111111&label=stars" alt="Stars">
   <img src="https://img.shields.io/github/v/release/DietrichGebert/ponytail?style=flat-square&color=111111&label=release" alt="Release">
   <img src="https://img.shields.io/npm/v/@dietrichgebert/ponytail?style=flat-square&color=111111&label=npm" alt="npm">
-  <img src="https://img.shields.io/badge/funciona%20con-14%20agentes-111111?style=flat-square" alt="Works with 14 agents">
+  <img src="https://img.shields.io/badge/funciona%20con-15%20agentes-111111?style=flat-square" alt="Works with 15 agents">
   <img src="https://img.shields.io/badge/licencia-MIT-111111?style=flat-square" alt="MIT license">
 </p>
 
@@ -198,6 +198,14 @@ Reutiliza el `gemini-extension.json` de este repo. Una diferencia: Antigravity c
 
 Lee `AGENTS.md` desde la raíz del proyecto, sin configuración. Copia [`AGENTS.md`](AGENTS.md) a tu proyecto, o ejecuta `codewhale` desde un checkout de este repo. Eso es todo.
 
+### Devin CLI
+
+```bash
+devin plugins install DietrichGebert/ponytail
+```
+
+Instala ponytail como plugin de Devin; los skills quedan disponibles como `/ponytail:ponytail`, `/ponytail:ponytail-review`, etc.
+
 ### OpenClaw
 
 ```bash
@@ -232,7 +240,7 @@ Qué archivos corresponden a qué agente: [Portabilidad de agentes](docs/agent-p
 | `/ponytail-debt` | Recolecta los atajos marcados con `ponytail:` que dejaste pendientes en un registro, para que "después" no se convierta en "nunca". |
 | `/ponytail-help` | Referencia rápida de los comandos anteriores. |
 
-Los comandos requieren un host compatible con skills (Claude Code, Codex, OpenCode, Gemini, pi). En Codex son skills; se invocan con `@` (`@ponytail-review`). Los adaptadores de solo instrucciones (Cursor, Windsurf, Cline, Copilot, Kiro, Antigravity) cargan el ruleset permanente sin los comandos.
+Los comandos requieren un host compatible con skills (Claude Code, Codex, Devin CLI, OpenCode, Gemini, pi, Swival). En Codex son skills; se invocan con `@` (`@ponytail-review`). Los adaptadores de solo instrucciones (Cursor, Windsurf, Cline, Copilot, Kiro, Antigravity) cargan el ruleset permanente sin los comandos.
 
 ## Desarrollo
 

README.ko.md

@@ -15,7 +15,7 @@
   <img src="https://img.shields.io/github/stars/DietrichGebert/ponytail?style=flat-square&color=111111&label=stars" alt="Stars">
   <img src="https://img.shields.io/github/v/release/DietrichGebert/ponytail?style=flat-square&color=111111&label=release" alt="Release">
   <img src="https://img.shields.io/npm/v/@dietrichgebert/ponytail?style=flat-square&color=111111&label=npm" alt="npm">
-  <img src="https://img.shields.io/badge/works%20with-14%20agents-111111?style=flat-square" alt="Works with 14 agents">
+  <img src="https://img.shields.io/badge/works%20with-15%20agents-111111?style=flat-square" alt="Works with 15 agents">
   <img src="https://img.shields.io/badge/license-MIT-111111?style=flat-square" alt="MIT license">
 </p>
 
@@ -217,6 +217,14 @@ Swival도 프로젝트 루트의 `AGENTS.md`와 전역의 `~/.config/swival/AGEN
 
 명령줄에서는 `$` 접두사로 스킬을 명시적으로 켠다. 예: `$ponytail-review`.
 
+### Devin CLI
+
+```bash
+devin plugins install DietrichGebert/ponytail
+```
+
+ponytail을 Devin 플러그인으로 설치한다. 스킬은 `/ponytail:ponytail`, `/ponytail:ponytail-review` 등으로 쓸 수 있다.
+
 ### OpenClaw
 
 ```bash
@@ -252,7 +260,7 @@ Codex 확장을 쓰는 VS Code는 이 저장소가 함께 싣는 `AGENTS.md`를
 | `/ponytail-gain` | 벤치마크로 잰 효과 스코어보드(코드 절감, 비용 절감, 속도 향상)를 보여 준다. |
 | `/ponytail-help` | 위 명령들의 빠른 참조. |
 
-명령들은 스킬을 지원하는 호스트가 있어야 돈다(Claude Code, Codex, OpenCode, Gemini, pi). Codex에선 스킬이라 `@`로 부른다(`@ponytail-review`). 지시문 전용 어댑터(Cursor, Windsurf, Cline, Copilot, Kiro, Antigravity)는 명령 없이 늘 켜진 룰셋만 불러온다.
+명령들은 스킬을 지원하는 호스트가 있어야 돈다(Claude Code, Codex, Devin CLI, OpenCode, Gemini, pi, Swival). Codex에선 스킬이라 `@`로 부른다(`@ponytail-review`). 지시문 전용 어댑터(Cursor, Windsurf, Cline, Copilot, Kiro, Antigravity)는 명령 없이 늘 켜진 룰셋만 불러온다.
 
 ## Development
 

README.md

@@ -15,7 +15,7 @@
   <img src="https://img.shields.io/github/stars/DietrichGebert/ponytail?style=flat-square&color=111111&label=stars" alt="Stars">
   <img src="https://img.shields.io/github/v/release/DietrichGebert/ponytail?style=flat-square&color=111111&label=release" alt="Release">
   <img src="https://img.shields.io/npm/v/@dietrichgebert/ponytail?style=flat-square&color=111111&label=npm" alt="npm">
-  <img src="https://img.shields.io/badge/works%20with-14%20agents-111111?style=flat-square" alt="Works with 14 agents">
+  <img src="https://img.shields.io/badge/works%20with-16%20agents-111111?style=flat-square" alt="Works with 16 agents">
   <img src="https://img.shields.io/badge/license-MIT-111111?style=flat-square" alt="MIT license">
 </p>
 
@@ -199,6 +199,14 @@ agy plugin install https://github.com/DietrichGebert/ponytail
 
 It reuses this repo's `gemini-extension.json`. One difference: Antigravity converts the `/ponytail` commands into skills, so you type them into the chat (e.g. `/ponytail-review` as a message) instead of picking them from a slash menu. Until the migration completes (around June 18, 2026), `gemini extensions install` still works too. To run it as an always-on rule instead, drop the ruleset into `.agents/rules/`.
 
+### Hermes Agent
+
+```bash
+hermes plugins install DietrichGebert/ponytail --enable
+```
+
+Restart Hermes after installing. The plugin injects the active Ponytail mode before each LLM turn, registers the bundled skills as `ponytail:<skill>`, and adds `/ponytail`, `/ponytail-review`, `/ponytail-audit`, `/ponytail-debt`, `/ponytail-gain`, and `/ponytail-help`. In shared gateways, restrict `/ponytail` to trusted users with Hermes slash-command access controls; runtime mode is process-local.
+
 ### CodeWhale
 
 Reads `AGENTS.md` from the project root, zero setup. Copy [`AGENTS.md`](AGENTS.md) to your project, or run `codewhale` from a checkout of this repo. That's it.
@@ -217,6 +225,14 @@ Swival also reads `AGENTS.md` from the project root and `~/.config/swival/AGENTS
 
 On the command line, use a `$` prefix to explicitly activate a skill. For example: `$ponytail-review`.
 
+### Devin CLI
+
+```bash
+devin plugins install DietrichGebert/ponytail
+```
+
+Installs ponytail as a Devin plugin; skills are available as `/ponytail:ponytail`, `/ponytail:ponytail-review`, and so on.
+
 ### OpenClaw
 
 ```bash
@@ -247,6 +263,7 @@ Which files map to which agent: [Agent portability](docs/agent-portability.md).
 |------|---------|
 | Claude Code | `/plugin remove ponytail` |
 | Codex | `codex plugin remove ponytail` |
+| Devin CLI | `devin plugins remove ponytail` |
 | Pi agent | `pi uninstall ponytail` |
 | Cursor / Windsurf / Cline / etc. | Delete the copied rule file |
 
@@ -263,7 +280,7 @@ These remove the plugin's own files. They leave behind a small amount of state p
 | `/ponytail-gain` | Show the measured impact scoreboard (less code, less cost, more speed) from the benchmark. |
 | `/ponytail-help` | Quick reference for the commands above. |
 
-Commands need a skill-capable host (Claude Code, Codex, OpenCode, Gemini, pi, Swival). In Codex they're skills, invoke with `@` (`@ponytail-review`). The instruction-only adapters (Cursor, Windsurf, Cline, Copilot, Kiro, Antigravity) load the always-on ruleset without the commands.
+Commands need a skill-capable host (Claude Code, Codex, Devin CLI, OpenCode, Gemini, pi, Swival, Hermes Agent). In Codex they're skills, invoke with `@` (`@ponytail-review`). The instruction-only adapters (Cursor, Windsurf, Cline, Copilot, Kiro, Antigravity) load the always-on ruleset without the commands.
 
 ## Development
 

__init__.py

@@ -0,0 +1,217 @@
+"""Hermes plugin for Ponytail."""
+
+from __future__ import annotations
+
+import json
+import os
+import re
+from pathlib import Path
+from typing import Any, Callable
+
+DEFAULT_MODE = "full"
+RUNTIME_MODES = {"off", "lite", "full", "ultra"}
+CONFIG_MODES = RUNTIME_MODES | {"review"}
+SKILL_COMMANDS = {
+    "ponytail-review": "Review the current diff or provided target for over-engineering.",
+    "ponytail-audit": "Audit the repo for over-engineering and deletion opportunities.",
+    "ponytail-debt": "List every deliberate `ponytail:` shortcut and its upgrade path.",
+    "ponytail-gain": "Show the measured-impact scoreboard (less code, less cost, more speed).",
+    "ponytail-help": "Show the Ponytail command reference.",
+}
+
+ROOT = Path(__file__).resolve().parent
+SKILLS_DIR = ROOT / "skills"
+PONYTAIL_SKILL = SKILLS_DIR / "ponytail" / "SKILL.md"
+REVIEW_SKILL = SKILLS_DIR / "ponytail-review" / "SKILL.md"
+
+_current_mode = None
+
+
+def _normalize_runtime_mode(mode: str | None) -> str | None:
+    if not isinstance(mode, str):
+        return None
+    mode = mode.strip().lower()
+    return mode if mode in RUNTIME_MODES else None
+
+
+def _normalize_config_mode(mode: str | None) -> str | None:
+    if not isinstance(mode, str):
+        return None
+    mode = mode.strip().lower()
+    return mode if mode in CONFIG_MODES else None
+
+
+def _config_dir() -> Path:
+    if os.environ.get("XDG_CONFIG_HOME"):
+        return Path(os.environ["XDG_CONFIG_HOME"]) / "ponytail"
+    if os.name == "nt":
+        return Path(os.environ.get("APPDATA", Path.home() / "AppData" / "Roaming")) / "ponytail"
+    return Path.home() / ".config" / "ponytail"
+
+
+def _default_mode() -> str:
+    env_mode = _normalize_config_mode(os.environ.get("PONYTAIL_DEFAULT_MODE"))
+    if env_mode:
+        return env_mode
+    try:
+        data = json.loads((_config_dir() / "config.json").read_text(encoding="utf-8"))
+        file_mode = _normalize_config_mode(data.get("defaultMode"))
+        if file_mode:
+            return file_mode
+    except Exception:
+        pass
+    return DEFAULT_MODE
+
+
+def _strip_frontmatter(text: str) -> str:
+    return re.sub(r"^---[\s\S]*?---\s*", "", text or "", count=1)
+
+
+def _filter_skill_body_for_mode(body: str, mode: str) -> str:
+    effective = _normalize_runtime_mode(mode) or DEFAULT_MODE
+    lines = []
+    for line in _strip_frontmatter(body).splitlines():
+        table_label = re.match(r"^\|\s*\*\*(.+?)\*\*\s*\|", line)
+        if table_label:
+            label_mode = _normalize_runtime_mode(table_label.group(1))
+            if label_mode and label_mode != effective:
+                continue
+
+        example_label = re.match(r"^-\s*([^:]+):\s*", line)
+        if example_label:
+            label_mode = _normalize_runtime_mode(example_label.group(1))
+            if label_mode and label_mode != effective:
+                continue
+
+        lines.append(line)
+    return "\n".join(lines)
+
+
+def _fallback_instructions(mode: str) -> str:
+    return (
+        f"PONYTAIL MODE ACTIVE — level: {mode}\n\n"
+        "You are a lazy senior developer. Lazy means efficient, not careless. "
+        "The best code is the code never written.\n\n"
+        "Before any code, stop at the first rung that holds: YAGNI, stdlib, "
+        "native platform, installed dependency, one line, then minimum code. "
+        "No unrequested abstractions, avoidable dependencies, boilerplate, or "
+        "speculative scaffolding. Deletion over addition. Boring over clever. "
+        "Do not simplify away trust-boundary validation, data-loss handling, "
+        "security, accessibility, explicitly requested behavior, or one small "
+        "runnable check for non-trivial logic."
+    )
+
+
+def build_injected_context(mode: str | None = None) -> str:
+    """Return the mode-filtered Ponytail context injected before LLM turns."""
+    configured = _normalize_config_mode(mode) or _default_mode()
+    if configured == "off":
+        return ""
+    if configured == "review":
+        try:
+            body = REVIEW_SKILL.read_text(encoding="utf-8")
+            return f"PONYTAIL MODE ACTIVE — level: review\n\n{_strip_frontmatter(body)}"
+        except OSError:
+            return "PONYTAIL MODE ACTIVE — level: review. Review diffs for unnecessary complexity."
+
+    effective = _normalize_runtime_mode(configured) or DEFAULT_MODE
+    try:
+        body = PONYTAIL_SKILL.read_text(encoding="utf-8")
+        return f"PONYTAIL MODE ACTIVE — level: {effective}\n\n{_filter_skill_body_for_mode(body, effective)}"
+    except OSError:
+        return _fallback_instructions(effective)
+
+
+def _pre_llm_call(session_id: str = "", **_: Any) -> dict[str, str] | None:
+    mode = _current_mode or _default_mode()
+    context = build_injected_context(mode)
+    return {"context": context} if context else None
+
+
+def _skill_prompt(command: str, args: str = "") -> str:
+    tail = args.strip()
+    target = f"\n\nUser arguments: {tail}" if tail else ""
+    return (
+        f"Load and follow the Hermes plugin skill `ponytail:{command}`. "
+        f"{SKILL_COMMANDS[command]}{target}"
+    )
+
+
+def _slash_access_denied(event: Any, gateway: Any, command: str) -> bool:
+    if gateway is None or event is None:
+        return False
+    checker = getattr(gateway, "_check_slash_access", None)
+    source = getattr(event, "source", None)
+    if checker is None or source is None:
+        return False
+    try:
+        return checker(source, command) is not None
+    except Exception:
+        return True
+
+
+def rewrite_gateway_command(event: Any = None, gateway: Any = None, **_: Any) -> dict[str, str] | None:
+    """Rewrite authorized gateway /ponytail-* commands into normal agent prompts."""
+    text = str(getattr(event, "text", "") or "").strip()
+    if not text.startswith("/"):
+        return None
+    head, _, rest = text[1:].partition(" ")
+    command = head.replace("_", "-").lower()
+    if command not in SKILL_COMMANDS:
+        return None
+    if _slash_access_denied(event, gateway, command):
+        return None
+    return {"action": "rewrite", "text": _skill_prompt(command, rest)}
+
+
+def _handle_mode_command(raw_args: str) -> str:
+    global _current_mode
+    arg = (raw_args or "").strip().lower()
+    if not arg:
+        mode = _current_mode or _default_mode()
+        return f"Ponytail mode: {mode}. Use `/ponytail lite|full|ultra|off`."
+    mode = _normalize_runtime_mode(arg)
+    if not mode:
+        return "Usage: /ponytail [lite|full|ultra|off]"
+    _current_mode = mode
+    return f"Ponytail mode set to {mode}."
+
+
+def _make_skill_command_handler(ctx: Any, command: str) -> Callable[[str], str]:
+    def handler(raw_args: str) -> str:
+        prompt = _skill_prompt(command, raw_args or "")
+        injected = False
+        try:
+            injected = bool(ctx.inject_message(prompt))
+        except Exception:
+            injected = False
+        if injected:
+            return f"Queued `{command}` for the agent."
+        return prompt
+
+    return handler
+
+
+def register(ctx: Any) -> None:
+    """Register Ponytail hooks, skills, and slash commands with Hermes."""
+    for child in sorted(SKILLS_DIR.iterdir() if SKILLS_DIR.exists() else []):
+        skill_md = child / "SKILL.md"
+        if child.is_dir() and skill_md.exists():
+            ctx.register_skill(child.name, skill_md)
+
+    ctx.register_hook("pre_llm_call", _pre_llm_call)
+    ctx.register_hook("pre_gateway_dispatch", rewrite_gateway_command)
+
+    ctx.register_command(
+        "ponytail",
+        _handle_mode_command,
+        description="Set Ponytail lazy senior dev mode: lite, full, ultra, or off.",
+        args_hint="[lite|full|ultra|off]",
+    )
+    for command, description in SKILL_COMMANDS.items():
+        ctx.register_command(
+            command,
+            _make_skill_command_handler(ctx, command),
+            description=description,
+            args_hint="[target or notes]",
+        )

after-install.md

@@ -0,0 +1,22 @@
+# Ponytail for Hermes installed
+
+Enable it if you did not install with `--enable`:
+
+```bash
+hermes plugins enable ponytail
+```
+
+Restart Hermes or the gateway after enabling.
+
+In shared gateways, restrict `/ponytail` to trusted users with Hermes slash-command access controls; runtime mode is process-local.
+
+Commands:
+
+- `/ponytail [lite|full|ultra|off]`
+- `/ponytail-review [target]`
+- `/ponytail-audit [target]`
+- `/ponytail-debt`
+- `/ponytail-gain`
+- `/ponytail-help`
+
+Bundled skills are available as `ponytail:ponytail`, `ponytail:ponytail-review`, `ponytail:ponytail-audit`, `ponytail:ponytail-debt`, `ponytail:ponytail-gain`, and `ponytail:ponytail-help`.

benchmarks/README.md

@@ -70,6 +70,22 @@ Versus baseline, ponytail writes **80-94% less code**, costs **42-75% less**, an
 > while the bare "one-liner" prompt drops a guard. That is the honest, defensible number. See
 > [results/2026-06-18-agentic.md](results/2026-06-18-agentic.md).
 
+## Independent benchmarks
+
+Run by other people, not by us, on their own harnesses and machines. Linked for
+transparency: the numbers are theirs, may shift between runs, and are corroboration
+rather than official figures. Only plugin-installed runs are listed, since pasting
+`SKILL.md` into a prompt is a rough approximation of `full` and skews the result.
+
+| Source | Method | Headline | Date |
+|---|---|---|---|
+| [KuldeepB19](https://kuldeepb19.github.io/ponytail-benchmark/) | Installed plugin, 24 tasks, no-skill vs Lite/Full/Ultra, 5 runs each (480 builds), Opus 4.8, graded by executing the code | ~44% less code (53% fewer statements), no correctness or security regression; trims everyday bad-input handling on 5/24 tasks | 2026-06-24 |
+| [RicardoCostaGit](https://github.com/RicardoCostaGit/ponytail-benchmark-from-cursor) | Multi-turn agentic runs via the Cursor SDK, isolated git worktrees, rule file toggled per run | Leaner output but higher process cost (more tool calls/tokens) on large completion-forced tasks; savings land on blocked/snowball-prone tasks | 2026-06-16 |
+
+Both land on the same split as the honesty note above: ponytail reliably writes less
+code, and whether that *saves money* depends on the workload (big win on
+over-build and blocked tasks, can cost more on large completion-forced agentic runs).
+
 ## Metrics
 
 | File | Metric | Behavior |

benchmarks/benchmark-local.py

@@ -154,6 +154,8 @@ def main():
     parsed_url = urllib.parse.urlparse(args.ollama_url)
     if parsed_url.scheme not in ("http", "https"):
         parser.error(f"Invalid --ollama-url scheme: '{parsed_url.scheme}'. Only 'http' and 'https' are supported.")
+    if not parsed_url.netloc:
+        parser.error(f"--ollama-url must include a host, e.g. http://localhost:11434 (got '{args.ollama_url}').")
 
     run(args.model, args.repeat, args.ollama_url)
 

benchmarks/loc.js

@@ -4,7 +4,9 @@
 module.exports = (output) => {
   const text = String(output || '');
   const blocks = [...text.matchAll(/```[a-zA-Z0-9_+-]*\n([\s\S]*?)```/g)].map((m) => m[1]);
-  const code = blocks.length ? blocks.join('\n') : text;
+  // Drop /* ... */ block comments before counting; the line filter below only
+  // caught `*`-aligned JSDoc, so plain block comments were miscounted as code.
+  const code = (blocks.length ? blocks.join('\n') : text).replace(/\/\*[\s\S]*?\*\//g, '');
   const loc = code
     .split('\n')
     .map((l) => l.trim())

benchmarks/loc.test.js

@@ -0,0 +1,22 @@
+// Regression guard for loc.js comment handling. Run: node loc.test.js
+const assert = require('assert');
+const loc = require('./loc.js');
+
+const score = (src) => loc(src).score;
+
+let pass = 0;
+const cases = [
+  // /* ... */ block comments must not count as code, whether or not the
+  // continuation lines are *-aligned (the old filter only caught JSDoc style).
+  ['plain block comment not counted', score('```js\nfunction f() {\n  /* explain\n     the rest */\n  return 1;\n}\n```'), 3],
+  ['jsdoc block comment not counted', score('```js\nfunction g() {\n  /*\n   * explain\n   */\n  return 2;\n}\n```'), 3],
+  ['inline block comment keeps its code line', score('```js\nconst x = 1; /* note */\nconst y = 2;\n```'), 2],
+  ['line comments still stripped', score('```js\n// header\nconst x = 1;\n```'), 1],
+  ['plain code unchanged', score('```js\nconst a = 1;\nconst b = 2;\n```'), 2],
+];
+for (const [name, got, want] of cases) {
+  assert.strictEqual(got, want, `FAILED: ${name} (got ${got}, want ${want})`);
+  console.log(`ok - ${name}`);
+  pass++;
+}
+console.log(`\n${pass}/${cases.length} passed`);

docs/agent-portability.md

@@ -12,6 +12,7 @@ to load in a given agent.
 | Codex | `.codex-plugin/plugin.json`, `hooks/claude-codex-hooks.json`, `hooks/`, `skills/` | Plugin install with the same skills plus lifecycle hooks for activation and mode tracking. |
 | OpenCode | `.opencode/plugins/ponytail.mjs`, `.opencode/command/`, `hooks/`, `skills/` | Server plugin injects the ruleset each turn via `experimental.chat.system.transform` and persists `/ponytail` switches; reuses the shared instruction builder. |
 | pi | `pi-extension/`, `skills/`, `hooks/` | Package extension: injects the ruleset each turn through the shared instruction builder and registers the `/ponytail` commands. |
+| Hermes Agent | `plugin.yaml`, `__init__.py`, `skills/` | Native Hermes plugin: injects active mode through `pre_llm_call`, rewrites gateway `/ponytail-*` skill commands into agent prompts, registers `/ponytail` mode switching, and exposes bundled skills as `ponytail:<skill>`. |
 | Gemini CLI | `gemini-extension.json`, `AGENTS.md`, `commands/`, `skills/` | Extension manifest points `contextFileName` at `AGENTS.md` for always-on rules, and reuses the existing `commands/*.toml` and `skills/`, which Gemini CLI auto-discovers. The Claude/Codex hook map is not placed at Gemini's auto-discovered `hooks/hooks.json` path. |
 | Cursor | `.cursor/rules/ponytail.mdc` | Always-on project rule. |
 | Windsurf | `.windsurf/rules/ponytail.md` | Project rule. |

docs/platform-native.md

@@ -86,6 +86,44 @@ const debounce = (fn, ms) => (...args) => { clearTimeout(t); t = setTimeout(() =
 
 ---
 
+## Swift / SwiftUI
+
+UI components people reach for a library or a custom view for.
+
+| You think you need | What the platform has |
+|---|---|
+| Date/time picker library | `DatePicker` |
+| Color picker library | `ColorPicker` |
+| Search bar + filtering | `.searchable(text:)` |
+| Pull-to-refresh library | `.refreshable { }` |
+| Swipe-to-delete / row actions | `.swipeActions { }` |
+| Async image loading + cache | `AsyncImage` |
+| Charting library | Swift Charts (`import Charts`) |
+| Markdown rendering | `Text(...)` markdown / `AttributedString(markdown:)` |
+| Share sheet wrapper | `ShareLink` |
+| Loading spinner | `ProgressView()` |
+| Photo picker | `PhotosPicker` |
+| Map SDK (basic) | `Map` (MapKit for SwiftUI) |
+| Grid layout library | `Grid` / `LazyVGrid` |
+
+Frameworks and stdlib that wrappers wrap.
+
+| You think you need | What the platform has |
+|---|---|
+| JSON library (SwiftyJSON) | `Codable` + `JSONDecoder` / `JSONEncoder` |
+| HTTP client (Alamofire, simple use) | `URLSession` async/await; Alamofire earns it for complex retry/multipart at scale |
+| Date/number/currency formatting | `.formatted()` / `FormatStyle` |
+| Regex library | Swift regex literals + `Regex` |
+| Crypto library (CryptoSwift) | `CryptoKit` |
+| Keychain wrapper | Security `SecItem`; a few lines, not a dependency |
+| Persistence / ORM | `SwiftData`, or `@AppStorage` for small key-values |
+| Logging library | `Logger` (`os.log`) |
+| UUID / Base64 helpers | `UUID()`, `Data(...).base64EncodedString()` |
+| Image downsampling | ImageIO `CGImageSourceCreateThumbnailAtIndex` |
+| Combine wrappers for async | async/await + `AsyncSequence` |
+
+---
+
 ## Node.js Standard Library
 
 Packages that wrap Node built-ins.

gemini-extension.json

@@ -1,6 +1,6 @@
 {
   "name": "ponytail",
-  "version": "4.8.3",
+  "version": "4.8.4",
   "description": "Lazy senior dev mode. Forces the simplest, shortest solution that actually works: YAGNI, stdlib first, no unrequested abstractions.",
   "contextFileName": "AGENTS.md"
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@dietrichgebert/ponytail",
-  "version": "4.8.3",
+  "version": "4.8.4",
   "description": "Lazy senior dev mode for AI agents. The best code is the code you never wrote.",
   "keywords": ["opencode-plugin", "opencode", "ponytail", "pi-package", "pi", "skills"],
   "license": "MIT",

plugin.yaml

@@ -0,0 +1,21 @@
+name: ponytail
+version: 4.8.4
+description: Lazy senior dev mode for Hermes Agent, always-on context, bundled skills, and slash commands.
+author: Salaamdev
+provides_hooks:
+  - pre_llm_call
+  - pre_gateway_dispatch
+provides_commands:
+  - ponytail
+  - ponytail-review
+  - ponytail-audit
+  - ponytail-debt
+  - ponytail-gain
+  - ponytail-help
+provides_skills:
+  - ponytail
+  - ponytail-review
+  - ponytail-audit
+  - ponytail-debt
+  - ponytail-gain
+  - ponytail-help

ponytail-mcp/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ponytail-mcp",
-  "version": "4.8.3",
+  "version": "4.8.4",
   "description": "MCP server that serves Ponytail's lazy-senior-dev instructions as a prompt and a tool.",
   "private": true,
   "type": "module",

scripts/build-openclaw-skills.js

@@ -17,7 +17,7 @@ const ROOT = path.join(__dirname, '..');
 const HOMEPAGE = 'https://github.com/DietrichGebert/ponytail';
 
 const DESCRIPTIONS = {
-  'ponytail': 'Lazy senior dev mode. Forces the simplest, shortest solution that works: YAGNI, stdlib first, no unrequested abstractions.',
+  'ponytail': 'Lazy senior dev mode for any coding task (write, refactor, fix, review): YAGNI, stdlib first, no unrequested abstractions. Not for non-coding requests.',
   'ponytail-review': 'Review a diff for over-engineering. Finds what to delete: reinvented stdlib, needless deps, speculative abstractions. One line per finding.',
   'ponytail-audit': 'Audit the whole repo for over-engineering. A ranked list of what to delete, simplify, or replace with stdlib or native features.',
   'ponytail-debt': 'Harvest every ponytail: shortcut comment into one debt ledger, so deferrals get tracked instead of forgotten. One-shot report.',

scripts/check-versions.js

@@ -1,6 +1,6 @@
 #!/usr/bin/env node
-// Version-consistency guard. Ponytail declares its version in six files across
+// Version-consistency guard. Ponytail declares its version in seven files across
-// four host ecosystems, and every release bumps all of them by hand.
+// five host ecosystems, and every release bumps all of them by hand.
 //
 // tests/gemini-extension.test.js already checks the four plugin manifests agree
 // with each other, but that can't catch the failure mode that shipped in v4.8.0:
@@ -21,6 +21,7 @@ const PINNED_SEMVER = /^\d+\.\d+\.\d+$/;
 const VERSION_FILES = [
   '.claude-plugin/plugin.json',  // Claude Code plugin — what users install
   '.codex-plugin/plugin.json',   // Codex plugin
+  '.devin-plugin/plugin.json',   // Devin CLI plugin
   '.github/plugin/plugin.json',  // Copilot plugin
   'gemini-extension.json',       // Gemini CLI extension
   'package.json',                // pi-package / repo root

skills/ponytail/SKILL.md

@@ -5,11 +5,14 @@ description: >
   minimal. Channels a senior dev who has seen everything: question whether the
   task needs to exist at all (YAGNI), reach for the standard library before
   custom code, native platform features before dependencies, one line before
-  fifty. Supports intensity levels: lite, full (default), ultra. Use whenever
+  fifty. Supports intensity levels: lite, full (default), ultra. Use on ANY
-  the user says "ponytail", "be lazy", "lazy mode", "simplest solution",
+  coding task: writing, adding, refactoring, fixing, reviewing, or designing
-  "minimal solution", "yagni", "do less", or "shortest path", and whenever
+  code, and choosing libraries or dependencies. Also use whenever the user
-  they complain about over-engineering, bloat, boilerplate, or unnecessary
+  says "ponytail", "be lazy", "lazy mode", "simplest solution", "minimal
-  dependencies.
+  solution", "yagni", "do less", or "shortest path", or complains about
+  over-engineering, bloat, boilerplate, or unnecessary dependencies. Do NOT
+  use for non-coding requests (general knowledge, prose, translation,
+  summaries, recipes).
 argument-hint: "[lite|full|ultra]"
 license: MIT
 ---

tests/copilot-plugin.test.js

@@ -13,6 +13,8 @@ const REQUIRED_COMMAND_FILES = [
   'ponytail-review.toml',
   'ponytail-audit.toml',
   'ponytail-debt.toml',
+  'ponytail-gain.toml',
+  'ponytail-help.toml',
 ];
 
 function readJSON(relPath) {

tests/hermes-plugin.test.js

@@ -0,0 +1,222 @@
+#!/usr/bin/env node
+// Hermes support is a real plugin, not just copied rules: the repo root must be
+// installable with `hermes plugins install owner/repo`, register bundled skills,
+// inject active mode context, and expose slash commands.
+
+const test = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('fs');
+const os = require('os');
+const path = require('path');
+const { spawnSync } = require('child_process');
+
+const commands = ['ponytail', 'ponytail-review', 'ponytail-audit', 'ponytail-debt', 'ponytail-gain', 'ponytail-help'];
+const skillCommands = commands.filter((name) => name !== 'ponytail');
+
+const root = path.join(__dirname, '..');
+
+function python(script, env = {}) {
+  const result = spawnSync('python3', ['-c', script], {
+    cwd: root,
+    env: { ...process.env, ...env },
+    encoding: 'utf8',
+  });
+  if (result.status !== 0) {
+    throw new Error(`python failed\nSTDOUT:\n${result.stdout}\nSTDERR:\n${result.stderr}`);
+  }
+  return result.stdout.trim();
+}
+
+test('Hermes plugin manifest matches runtime skills, hooks, commands, and package version', () => {
+  const manifestPath = path.join(root, 'plugin.yaml');
+  assert.ok(fs.existsSync(manifestPath), 'missing root plugin.yaml');
+  const manifest = fs.readFileSync(manifestPath, 'utf8');
+  const packageJson = JSON.parse(fs.readFileSync(path.join(root, 'package.json'), 'utf8'));
+  const skillDirs = fs.readdirSync(path.join(root, 'skills'))
+    .filter((name) => fs.existsSync(path.join(root, 'skills', name, 'SKILL.md')))
+    .sort();
+
+  assert.match(manifest, /^name:\s*ponytail$/m);
+  assert.match(manifest, new RegExp(`^version:\\s*${packageJson.version}$`, 'm'));
+  assert.deepEqual(commands.filter((name) => manifest.includes(`  - ${name}`)), commands);
+  assert.deepEqual(skillDirs.filter((name) => manifest.includes(`  - ${name}`)), skillDirs);
+  assert.match(manifest, /pre_llm_call/);
+  assert.match(manifest, /pre_gateway_dispatch/);
+});
+
+test('Hermes plugin registers every shipped skill under the ponytail namespace', () => {
+  const output = python(String.raw`
+import importlib.util, json, pathlib
+spec = importlib.util.spec_from_file_location('ponytail_hermes_plugin', '__init__.py')
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+class Ctx:
+    def __init__(self):
+        self.skills = []
+        self.hooks = []
+        self.commands = []
+    def register_skill(self, name, path):
+        self.skills.append((name, pathlib.Path(path).as_posix()))
+    def register_hook(self, name, handler):
+        self.hooks.append(name)
+    def register_command(self, name, handler, description='', args_hint=''):
+        self.commands.append(name)
+ctx = Ctx()
+mod.register(ctx)
+print(json.dumps({'skills': ctx.skills, 'hooks': ctx.hooks, 'commands': ctx.commands}, sort_keys=True))
+`);
+  const data = JSON.parse(output);
+  assert.deepEqual(data.skills.map(([name]) => name).sort(), [
+    'ponytail',
+    'ponytail-audit',
+    'ponytail-debt',
+    'ponytail-gain',
+    'ponytail-help',
+    'ponytail-review',
+  ]);
+  assert.ok(data.skills.every(([, skillPath]) => skillPath.endsWith('/SKILL.md')));
+  assert.ok(data.hooks.includes('pre_llm_call'));
+  assert.ok(data.commands.includes('ponytail'));
+  assert.ok(data.commands.includes('ponytail-review'));
+});
+
+test('Hermes plugin builds mode-aware injected context from the canonical skill', () => {
+  const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'ponytail-config-'));
+  const output = python(String.raw`
+import importlib.util, json
+spec = importlib.util.spec_from_file_location('ponytail_hermes_plugin', '__init__.py')
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+ctx = mod.build_injected_context('ultra')
+print(json.dumps({'ctx': ctx}))
+`, { XDG_CONFIG_HOME: tmp });
+  const { ctx } = JSON.parse(output);
+
+  assert.match(ctx, /PONYTAIL MODE ACTIVE — level: ultra/);
+  assert.match(ctx, /The best\s+code is the code never written/);
+  assert.match(ctx, /ultra/i);
+  assert.doesNotMatch(ctx, /^---/);
+  assert.doesNotMatch(ctx, /\|\s*\*\*Lite\*\*/i);
+});
+
+test('Hermes mode config respects env, config file, off, and invalid command behavior', () => {
+  const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'ponytail-config-'));
+  fs.mkdirSync(path.join(tmp, 'ponytail'), { recursive: true });
+  fs.writeFileSync(path.join(tmp, 'ponytail', 'config.json'), JSON.stringify({ defaultMode: 'lite' }));
+  const output = python(String.raw`
+import importlib.util, json
+spec = importlib.util.spec_from_file_location('ponytail_hermes_plugin', '__init__.py')
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+class Ctx:
+    def __init__(self): self.commands = {}
+    def register_skill(self, name, path): pass
+    def register_hook(self, name, handler): pass
+    def register_command(self, name, handler, description='', args_hint=''):
+        self.commands[name] = handler
+ctx = Ctx()
+mod.register(ctx)
+status_before = ctx.commands['ponytail']('')
+invalid = ctx.commands['ponytail']('maximum')
+status_after = ctx.commands['ponytail']('')
+print(json.dumps({
+    'default': mod.build_injected_context(None),
+    'off': mod.build_injected_context('off'),
+    'status_before': status_before,
+    'invalid': invalid,
+    'status_after': status_after,
+}))
+`, { XDG_CONFIG_HOME: tmp, PONYTAIL_DEFAULT_MODE: 'ultra' });
+  const data = JSON.parse(output);
+  assert.match(data.default, /level: ultra/);
+  assert.equal(data.off, '');
+  assert.match(data.status_before, /Ponytail mode: ultra/);
+  assert.match(data.invalid, /Usage:/);
+  assert.match(data.status_after, /Ponytail mode: ultra/);
+});
+
+test('Hermes plugin review mode injects the real review skill body', () => {
+  const output = python(String.raw`
+import importlib.util, json
+spec = importlib.util.spec_from_file_location('ponytail_hermes_plugin', '__init__.py')
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+ctx = mod.build_injected_context('review')
+print(json.dumps({'ctx': ctx}))
+`);
+  const { ctx } = JSON.parse(output);
+  assert.match(ctx, /PONYTAIL MODE ACTIVE — level: review/);
+  assert.match(ctx, /Review diffs for unnecessary complexity/);
+  assert.match(ctx, /net: -<N> lines possible/);
+  assert.doesNotMatch(ctx, /^---/);
+});
+
+test('Hermes /ponytail command changes mode and pre_llm_call injects current context', () => {
+  const output = python(String.raw`
+import importlib.util, json
+spec = importlib.util.spec_from_file_location('ponytail_hermes_plugin', '__init__.py')
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+class Ctx:
+    def __init__(self):
+        self.hooks = {}
+        self.commands = {}
+    def register_skill(self, name, path): pass
+    def register_hook(self, name, handler): self.hooks[name] = handler
+    def register_command(self, name, handler, description='', args_hint=''):
+        self.commands[name] = handler
+ctx = Ctx()
+mod.register(ctx)
+message = ctx.commands['ponytail']('ultra')
+injected = ctx.hooks['pre_llm_call'](session_id='s1', user_message='build it', conversation_history=[], is_first_turn=False, model='m', platform='cli')
+print(json.dumps({'message': message, 'context': injected['context']}))
+`);
+  const data = JSON.parse(output);
+  assert.match(data.message, /ultra/);
+  assert.match(data.context, /PONYTAIL MODE ACTIVE — level: ultra/);
+});
+
+test('Hermes gateway rewrite respects slash access denial', () => {
+  const output = python(String.raw`
+import importlib.util, json
+spec = importlib.util.spec_from_file_location('ponytail_hermes_plugin', '__init__.py')
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+class Source:
+    platform = None
+    chat_id = 'c1'
+    user_id = 'u1'
+class Event:
+    text = '/ponytail-review src/app.js'
+    source = Source()
+class Gateway:
+    def _check_slash_access(self, source, command):
+        return 'denied'
+result = mod.rewrite_gateway_command(event=Event(), gateway=Gateway())
+print(json.dumps(result))
+`);
+  assert.equal(output, 'null');
+});
+
+test('Hermes gateway rewrite preserves every skill command and ignores unrelated text', () => {
+  const output = python(String.raw`
+import importlib.util, json
+spec = importlib.util.spec_from_file_location('ponytail_hermes_plugin', '__init__.py')
+mod = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(mod)
+class Event:
+    def __init__(self, text): self.text = text
+cases = {}
+for text in ['/ponytail-review x', '/ponytail_audit repo', '/ponytail-debt', '/ponytail-help', '/status', 'hello']:
+    cases[text] = mod.rewrite_gateway_command(event=Event(text))
+print(json.dumps(cases, sort_keys=True))
+`);
+  const data = JSON.parse(output);
+  assert.match(data['/ponytail-review x'].text, /ponytail-review/);
+  assert.match(data['/ponytail_audit repo'].text, /ponytail-audit/);
+  assert.match(data['/ponytail_audit repo'].text, /repo/);
+  assert.match(data['/ponytail-debt'].text, /ponytail-debt/);
+  assert.match(data['/ponytail-help'].text, /ponytail-help/);
+  assert.equal(data['/status'], null);
+  assert.equal(data.hello, null);
+});