test(writing-skills): cover render-graphs execution

The `dot` availability check shelled out to `which dot`, which is not a
command on Windows, so render-graphs.js reported graphviz as missing on
Windows even when it was installed. Replace it with a direct `dot -V`
probe via execFileSync.

Also switch the SVG render call from execSync to execFileSync('dot',
['-Tsvg']). Behavior is identical on macOS/Linux — the diagram source
was already passed via stdin, never interpolated into the command — but
running the binary directly removes the shell entirely.

.gitignore

@@ -11,3 +11,9 @@ triage/
 # development (see CLAUDE.md / README.md). It is not part of the published
 # plugin, so the whole directory is ignored here.
 evals/
+
+# Python
+__pycache__/
+*.pyc
+*.pyo
+.pytest_cache/

.hermes-plugin/__init__.py

@@ -0,0 +1,104 @@
+import os
+import re
+from pathlib import Path
+
+BOOTSTRAP_MARKER = "superpowers:using-superpowers bootstrap for hermes"
+
+
+def _skills_dir() -> str:
+    """Locate the stock skills/ tree for either supported install layout.
+
+    - git-clone install (`hermes plugins install obra/superpowers`): the plugin
+      dir is the repo root, so `.hermes-plugin/` and `skills/` are siblings and
+      this module resolves `../skills`.
+    - flattened install (plugin files copied to the plugin dir root): `skills/`
+      sits next to this module.
+
+    Raises loudly when neither matches — a bootstrap that silently skips is how
+    a broken install masquerades as a working one.
+    """
+    here = os.path.dirname(os.path.realpath(__file__))
+    candidates = (
+        os.path.realpath(os.path.join(here, "..", "skills")),
+        os.path.realpath(os.path.join(here, "skills")),
+    )
+    for cand in candidates:
+        if os.path.isfile(os.path.join(cand, "using-superpowers", "SKILL.md")):
+            return cand
+    raise RuntimeError(
+        "superpowers plugin: cannot find the skills/ tree "
+        f"(looked at {candidates}). Reinstall with "
+        "`hermes plugins install obra/superpowers`."
+    )
+
+
+def _strip_frontmatter(content: str) -> str:
+    match = re.match(r"^---\n[\s\S]*?\n---\n([\s\S]*)$", content)
+    return (match.group(1) if match else content).strip()
+
+
+def _build_bootstrap(skills_dir: str) -> str:
+    with open(
+        os.path.join(skills_dir, "using-superpowers", "SKILL.md"),
+        encoding="utf-8",
+    ) as f:
+        body = _strip_frontmatter(f.read())
+
+    tools_path = os.path.join(
+        skills_dir, "using-superpowers", "references", "hermes-tools.md"
+    )
+    with open(tools_path, encoding="utf-8") as f:
+        tool_mapping = f.read().strip()
+
+    return (
+        f"<EXTREMELY_IMPORTANT>\n"
+        f"{BOOTSTRAP_MARKER}\n\n"
+        f"You have superpowers.\n\n"
+        f"The using-superpowers skill content is included below and is already "
+        f"loaded for this Hermes session. Follow it now. "
+        f"Do not try to load using-superpowers again.\n\n"
+        f"{body}\n\n"
+        f"## Loading Superpowers Skills on Hermes\n\n"
+        f"Superpowers skills are registered with Hermes' native skill loader: "
+        f'invoke one with `skill_view("superpowers:skill-name")` '
+        f'(for example `skill_view("superpowers:brainstorming")`). '
+        f"If a namespaced lookup returns 'not found', read the skill file "
+        f"directly instead:\n"
+        f'`read_file("{skills_dir}/skill-name/SKILL.md")`\n\n'
+        f"The superpowers skills directory is: `{skills_dir}`\n\n"
+        f"{tool_mapping}\n"
+        f"</EXTREMELY_IMPORTANT>"
+    )
+
+
+def register(ctx):
+    skills_dir = _skills_dir()
+    bootstrap = _build_bootstrap(skills_dir)
+
+    # Register every stock skill with Hermes' native loader so skill_view can
+    # load them on demand. Standard markdown; no conversion (plugin guide).
+    # register_skill requires a pathlib.Path — a str raises AttributeError and
+    # hermes silently disables the whole plugin (verified 2026-07-23).
+    for name in sorted(os.listdir(skills_dir)):
+        skill_md = os.path.join(skills_dir, name, "SKILL.md")
+        if os.path.isfile(skill_md):
+            ctx.register_skill(name, Path(skill_md))
+
+    # pre_llm_call returning {"context": ...} is the documented injection path
+    # (on_session_start return values are ignored, and ctx.inject_message
+    # refuses from that hook — verified empirically 2026-07-23). The context is
+    # appended to the first turn's user message.
+    def pre_llm_call(
+        session_id=None,
+        user_message=None,
+        conversation_history=None,
+        is_first_turn=None,
+        model=None,
+        platform=None,
+        **kwargs,
+    ):
+        if is_first_turn:
+            return {"context": bootstrap}
+        return None
+
+    ctx.register_hook("pre_llm_call", pre_llm_call)

.hermes-plugin/plugin.yaml

@@ -0,0 +1,6 @@
+name: superpowers
+version: 6.2.0
+description: Superpowers skills and workflow bootstrap for Hermes Agent
+author: obra
+provides_hooks:
+  - pre_llm_call

README.md

@@ -2,10 +2,35 @@
 
 Superpowers is a complete software development methodology for your coding agents, built on top of a set of composable skills and some initial instructions that make sure your agent uses them.
 
+## Table of Contents
+
+- [Quickstart](#quickstart)
+- [How it works](#how-it-works)
+- [Commercial Services](#commercial-services)
+- [Installation](#installation)
+  - [Claude Code](#claude-code)
+  - [Antigravity](#antigravity)
+  - [Codex App](#codex-app)
+  - [Codex CLI](#codex-cli)
+  - [Cursor](#cursor)
+  - [Factory Droid](#factory-droid)
+  - [Gemini CLI](#gemini-cli)
+  - [GitHub Copilot CLI](#github-copilot-cli)
+  - [Kimi Code](#kimi-code)
+  - [OpenCode](#opencode)
+  - [Pi](#pi)
+- [The Basic Workflow](#the-basic-workflow)
+- [Community](#community)
+- [What's Inside](#whats-inside)
+- [Philosophy](#philosophy)
+- [Contributing](#contributing)
+- [Updating](#updating)
+- [License](#license)
+- [Visual companion telemetry](#visual-companion-telemetry)
 
 ## Quickstart
 
-Give your agent Superpowers: [Claude Code](#claude-code), [Antigravity](#antigravity), [Codex App](#codex-app), [Codex CLI](#codex-cli), [Cursor](#cursor), [Factory Droid](#factory-droid), [Gemini CLI](#gemini-cli), [GitHub Copilot CLI](#github-copilot-cli), [Kimi Code](#kimi-code), [OpenCode](#opencode), [Pi](#pi).
+Give your agent Superpowers: [Claude Code](#claude-code), [Antigravity](#antigravity), [Codex App](#codex-app), [Codex CLI](#codex-cli), [Cursor](#cursor), [Factory Droid](#factory-droid), [Gemini CLI](#gemini-cli), [GitHub Copilot CLI](#github-copilot-cli), [Hermes Agent](#hermes-agent), [Kimi Code](#kimi-code), [OpenCode](#opencode), [Pi](#pi).
 
 ## How it works
 
@@ -193,6 +218,18 @@ pi -e /path/to/superpowers
 
 The Pi package loads the Superpowers skills and a small extension that injects the `using-superpowers` bootstrap at session startup and again after compaction. Pi has native skills, so no compatibility `Skill` tool is required. Subagent and task-list tools remain optional Pi companion packages.
 
+### Hermes Agent
+
+Install Superpowers as a Hermes plugin from this repository:
+
+```bash
+hermes plugins install obra/superpowers --enable
+```
+
+Restart any active Hermes sessions after installing. Note: Hermes has no
+post-compaction hook, so a very long session that compacts over its first
+turn loses the bootstrap — start a fresh session if skills stop triggering.
+
 ## The Basic Workflow
 
 1. **brainstorming** - Activates before writing code. Refines rough ideas through questions, explores alternatives, presents design in sections for validation. Saves design document.
@@ -211,6 +248,14 @@ The Pi package loads the Superpowers skills and a small extension that injects t
 
 **The agent checks for relevant skills before any task.** Mandatory workflows, not suggestions.
 
+## Community
+
+Superpowers is built by [Jesse Vincent](https://blog.fsck.com) and the rest of the folks at [Prime Radiant](https://primeradiant.com).
+
+- **Discord**: [Join us](https://discord.gg/35wsABTejz) for community support, questions, and sharing what you're building with Superpowers
+- **Issues**: https://github.com/obra/superpowers/issues
+- **Release announcements**: [Sign up](https://primeradiant.com/superpowers/) to get notified about new versions
+
 ## What's Inside
 
 ### Skills Library
@@ -271,11 +316,3 @@ MIT License - see LICENSE file for details
 ## Visual companion telemetry
 
 Because skills and plugins don't provide any feedback to creators, we have no idea how many of you are using Superpowers. By default, the Prime Radiant logo on brainstorming's optional visual companion feature is loaded from our website. It includes the version of Superpowers in use. It does not include any details about your project, prompt, or coding agent. We don't see your clicks or anything about what you're building. This helps us have a rough idea of how many folks are using Superpowers and which version of Superpowers they're using. It's 100% optional. To disable this, set the environment variable `SUPERPOWERS_DISABLE_TELEMETRY` to any true value. Superpowers also honors Claude Code's `DISABLE_TELEMETRY` and `CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC` opt-outs.
-
-## Community
-
-Superpowers is built by [Jesse Vincent](https://blog.fsck.com) and the rest of the folks at [Prime Radiant](https://primeradiant.com).
-
-- **Discord**: [Join us](https://discord.gg/35wsABTejz) for community support, questions, and sharing what you're building with Superpowers
-- **Issues**: https://github.com/obra/superpowers/issues
-- **Release announcements**: [Sign up](https://primeradiant.com/superpowers/) to get notified about new versions

skills/subagent-driven-development/task-reviewer-prompt.md

@@ -84,13 +84,6 @@ Subagent (general-purpose):
     Warnings or other noise in the implementer's reported test output are
     findings — test output should be pristine.
 
-    Evidence you cannot see is not evidence that doesn't exist. If the
-    report or its test evidence looks truncated, or you cannot locate the
-    results it claims, re-read the file at its stated path — and if it is
-    genuinely missing or garbled, report that as a gap for the controller.
-    Re-running the suite to regenerate what you failed to read is not
-    verification; illegibility of the evidence is not invalidation of it.
-
     ## Part 1: Spec Compliance
 
     Compare the diff against What Was Requested:

skills/using-superpowers/SKILL.md

@@ -56,6 +56,7 @@ If your harness appears here, read its reference file for special instructions:
 - Codex: `references/codex-tools.md`
 - Pi: `references/pi-tools.md`
 - Antigravity: `references/antigravity-tools.md`
+- Hermes Agent: `references/hermes-tools.md`
 
 ## User Instructions
 

skills/using-superpowers/references/hermes-tools.md

@@ -0,0 +1,56 @@
+# Hermes Agent Tool Mapping
+
+Skills speak in actions ("dispatch a subagent", "create a todo", "read a file"). On Hermes Agent these resolve to the tools below.
+
+## Tools
+
+| Action skills request | Hermes tool |
+|---|---|
+| Read a file | `read_file` |
+| Create a new file | `write_file` |
+| Edit a file (targeted patch) | `patch` |
+| Run a shell command | `terminal` |
+| Search file contents | `search_files` |
+| Find files by name | `terminal` with `find` |
+| Fetch a URL / read a webpage | `web_extract(urls=[...])` |
+| Search the web | `web_search(query=...)` |
+| Dispatch a subagent | `delegate_task(goal=..., context=..., toolsets=[...], role="leaf")` |
+| Task tracking | `todo` tool |
+| Invoke a skill | `skill_view("skill-name")` |
+
+## Instructions file
+
+When a skill mentions "your instructions file," on Hermes Agent this is **`AGENTS.md`** in the project directory, or **`SOUL.md`** globally at `~/.hermes/SOUL.md`.
+
+## Invoking a skill
+
+Hermes Agent has a `skills` toolset with `skill_view` and `skills_list` tools.
+To invoke a superpowers skill, use:
+
+```
+skill_view("brainstorming")
+skill_view("test-driven-development")
+```
+
+If `skill_view` cannot find a superpowers skill (it may not appear in the catalog
+until the plugin fully registers it), fall back to reading the SKILL.md directly:
+
+```
+read_file(path="~/.hermes/plugins/superpowers/skills/<skill-name>/SKILL.md")
+```
+
+This fallback is the same mechanism used by other harnesses without native skill loading.
+
+## Subagent dispatch
+
+Use `delegate_task` to spawn isolated subagents for parallel or sequential workstreams:
+
+```
+delegate_task(goal="...", context="...", toolsets=[...], role="leaf")
+```
+
+If `delegate_task` is unavailable, do the work inline rather than inventing tool calls.
+
+## Task tracking
+
+Use the `todo` tool for task tracking within a session. For multi-agent task boards, use `hermes kanban` CLI if available. Treat older `TodoWrite` references as the task-tracking action.

skills/writing-skills/render-graphs.js

@@ -13,9 +13,9 @@
  * Requires: graphviz (dot) installed on system
  */
 
-const fs = require('fs');
+import * as fs from 'fs';
-const path = require('path');
+import * as path from 'path';
-const { execSync } = require('child_process');
+import { execFileSync } from 'child_process';
 
 function extractDotBlocks(markdown) {
   const blocks = [];
@@ -69,7 +69,7 @@ ${bodies.join('\n\n')}
 
 function renderToSvg(dotContent) {
   try {
-    return execSync('dot -Tsvg', {
+    return execFileSync('dot', ['-Tsvg'], {
       input: dotContent,
       encoding: 'utf-8',
       maxBuffer: 10 * 1024 * 1024
@@ -107,9 +107,10 @@ function main() {
     process.exit(1);
   }
 
-  // Check if dot is available
+  // Check if dot is available. Run the binary directly rather than probing
+  // with `which`, which is not a command on Windows.
   try {
-    execSync('which dot', { encoding: 'utf-8' });
+    execFileSync('dot', ['-V'], { stdio: 'ignore' });
   } catch {
     console.error('Error: graphviz (dot) not found. Install with:');
     console.error('  brew install graphviz    # macOS');

tests/hermes/conftest.py

@@ -0,0 +1,30 @@
+from pathlib import Path
+
+import pytest
+from unittest.mock import MagicMock
+
+
+@pytest.fixture
+def mock_ctx():
+    ctx = MagicMock()
+    ctx._hooks = {}
+    ctx._skills = {}
+
+    def register_hook(event, fn):
+        ctx._hooks[event] = fn
+
+    def register_skill(name, path):
+        # Mimic hermes' real register_skill, which calls path.exists() and
+        # therefore breaks on a str (the bug that silently disabled the whole
+        # plugin, found 2026-07-23). Keeping that fidelity here means a
+        # regression to str paths fails these tests instead of failing
+        # silently inside hermes.
+        if not isinstance(path, Path):
+            raise AttributeError(
+                f"register_skill requires a pathlib.Path, got {type(path).__name__}"
+            )
+        ctx._skills[name] = path
+
+    ctx.register_hook.side_effect = register_hook
+    ctx.register_skill.side_effect = register_skill
+    return ctx

tests/hermes/test_bootstrap.py

@@ -0,0 +1,98 @@
+import importlib
+import os
+import sys
+
+import pytest
+
+sys.path.insert(0, os.path.abspath(
+    os.path.join(os.path.dirname(__file__), "../../.hermes-plugin")
+))
+
+BOOTSTRAP_MARKER = "superpowers:using-superpowers bootstrap for hermes"
+
+# Hermes spills injected context over 10,000 chars to a file, which breaks
+# inline injection semantics. The bootstrap must stay under it with margin.
+HERMES_CONTEXT_SPILL_LIMIT = 10_000
+
+
+def _load():
+    if "__init__" in sys.modules:
+        del sys.modules["__init__"]
+    return importlib.import_module("__init__")
+
+
+def _bootstrap():
+    m = _load()
+    return m._build_bootstrap(m._skills_dir())
+
+
+class TestStripFrontmatter:
+    def test_strips_yaml_block(self):
+        m = _load()
+        content = "---\nname: foo\ndescription: bar\n---\n# Body\nContent here"
+        assert m._strip_frontmatter(content) == "# Body\nContent here"
+
+    def test_no_frontmatter_returns_trimmed_content(self):
+        m = _load()
+        content = "# No frontmatter\nJust content"
+        assert m._strip_frontmatter(content) == "# No frontmatter\nJust content"
+
+    def test_strips_surrounding_whitespace_from_body(self):
+        m = _load()
+        content = "---\nname: foo\n---\n\n\n# Body\n\n"
+        assert m._strip_frontmatter(content) == "# Body"
+
+
+class TestSkillsDirResolution:
+    def test_repo_layout_resolves(self):
+        # The repo checkout IS the git-clone layout: .hermes-plugin/ and
+        # skills/ are siblings, so resolution must succeed from here.
+        m = _load()
+        skills = m._skills_dir()
+        assert os.path.isfile(
+            os.path.join(skills, "using-superpowers", "SKILL.md")
+        )
+
+
+class TestBootstrapContent:
+    def test_marker_and_wrapper(self):
+        content = _bootstrap()
+        assert BOOTSTRAP_MARKER in content
+        assert content.startswith("<EXTREMELY_IMPORTANT>")
+        assert content.rstrip().endswith("</EXTREMELY_IMPORTANT>")
+
+    def test_contains_using_superpowers_body(self):
+        content = _bootstrap()
+        # A distinctive line from the skill body proves the real SKILL.md was
+        # embedded, not a stub.
+        assert "You have superpowers" in content
+        assert "## The Rule" in content
+
+    def test_frontmatter_stripped(self):
+        content = _bootstrap()
+        assert "---\nname:" not in content
+
+    def test_tool_mapping_sourced_from_reference_file(self):
+        m = _load()
+        content = _bootstrap()
+        ref = os.path.join(
+            m._skills_dir(), "using-superpowers", "references", "hermes-tools.md"
+        )
+        with open(ref, encoding="utf-8") as f:
+            ref_text = f.read().strip()
+        # The mapping is included verbatim from the reference file — the
+        # single source, not a drift-prone inline copy.
+        assert ref_text in content
+        assert "read_file" in content
+
+    def test_skill_view_guidance_present(self):
+        content = _bootstrap()
+        assert 'skill_view("superpowers:brainstorming")' in content
+
+    def test_under_hermes_context_spill_limit(self):
+        content = _bootstrap()
+        assert len(content) < HERMES_CONTEXT_SPILL_LIMIT, (
+            f"bootstrap is {len(content)} chars; hermes spills injected "
+            f"context over {HERMES_CONTEXT_SPILL_LIMIT} to a file, which "
+            "breaks inline injection"
+        )

tests/hermes/test_plugin.py

@@ -0,0 +1,142 @@
+import importlib
+import importlib.util
+import os
+import shutil
+import sys
+from pathlib import Path
+
+import pytest
+
+# Point at the plugin directory
+_PLUGIN_DIR = os.path.abspath(
+    os.path.join(os.path.dirname(__file__), "../../.hermes-plugin")
+)
+sys.path.insert(0, _PLUGIN_DIR)
+
+BOOTSTRAP_MARKER = "superpowers:using-superpowers bootstrap for hermes"
+
+
+def _load_plugin():
+    """Re-import plugin module fresh."""
+    if "__init__" in sys.modules:
+        del sys.modules["__init__"]
+    return importlib.import_module("__init__")
+
+
+def _fire_pre_llm(ctx, **kwargs):
+    hook = ctx._hooks["pre_llm_call"]
+    defaults = {
+        "session_id": "s1",
+        "user_message": "hi",
+        "conversation_history": [],
+        "is_first_turn": False,
+        "model": "test-model",
+        "platform": "cli",
+    }
+    defaults.update(kwargs)
+    return hook(**defaults)
+
+
+class TestPluginRegistration:
+    def test_register_attaches_only_pre_llm_call_hook(self, mock_ctx):
+        plugin = _load_plugin()
+        plugin.register(mock_ctx)
+        assert list(mock_ctx._hooks.keys()) == ["pre_llm_call"]
+
+    def test_register_registers_every_stock_skill_as_path(self, mock_ctx):
+        plugin = _load_plugin()
+        plugin.register(mock_ctx)
+        # The conftest mock raises on non-Path (mirroring hermes' real
+        # register_skill), so reaching these asserts proves every
+        # registration passed a pathlib.Path.
+        assert "using-superpowers" in mock_ctx._skills
+        assert "brainstorming" in mock_ctx._skills
+        for name, path in mock_ctx._skills.items():
+            assert isinstance(path, Path)
+            assert path.name == "SKILL.md"
+            assert path.parent.name == name
+            assert path.is_file()
+
+    def test_registered_skills_match_skill_directories(self, mock_ctx):
+        plugin = _load_plugin()
+        plugin.register(mock_ctx)
+        skills_root = plugin._skills_dir()
+        expected = {
+            entry
+            for entry in os.listdir(skills_root)
+            if os.path.isfile(os.path.join(skills_root, entry, "SKILL.md"))
+        }
+        assert set(mock_ctx._skills.keys()) == expected
+
+
+class TestBootstrapInjection:
+    def test_first_turn_returns_bootstrap_context(self, mock_ctx):
+        plugin = _load_plugin()
+        plugin.register(mock_ctx)
+        result = _fire_pre_llm(mock_ctx, is_first_turn=True)
+        assert isinstance(result, dict)
+        content = result["context"]
+        assert BOOTSTRAP_MARKER in content
+        assert content.startswith("<EXTREMELY_IMPORTANT>")
+        assert content.rstrip().endswith("</EXTREMELY_IMPORTANT>")
+
+    def test_later_turns_return_none(self, mock_ctx):
+        plugin = _load_plugin()
+        plugin.register(mock_ctx)
+        assert _fire_pre_llm(mock_ctx, is_first_turn=False) is None
+        assert _fire_pre_llm(mock_ctx, is_first_turn=None) is None
+
+    def test_hook_tolerates_future_kwargs(self, mock_ctx):
+        plugin = _load_plugin()
+        plugin.register(mock_ctx)
+        result = _fire_pre_llm(
+            mock_ctx, is_first_turn=True, telemetry_schema_version=3
+        )
+        assert BOOTSTRAP_MARKER in result["context"]
+
+
+class TestLayoutResolution:
+    def _stage(self, tmp_path, layout):
+        """Copy the plugin module + a minimal skills tree in the given layout."""
+        src_skills = Path(_PLUGIN_DIR).parent / "skills"
+        if layout == "clone":
+            plugdir = tmp_path / "superpowers" / ".hermes-plugin"
+        else:  # flat: module at the plugin dir root, skills nested inside it
+            plugdir = tmp_path / "superpowers"
+        skills = tmp_path / "superpowers" / "skills"
+        plugdir.mkdir(parents=True, exist_ok=True)
+        shutil.copy(Path(_PLUGIN_DIR) / "__init__.py", plugdir / "__init__.py")
+        for skill in ("using-superpowers", "brainstorming"):
+            shutil.copytree(src_skills / skill, skills / skill)
+        return plugdir
+
+    def _load_from(self, plugdir):
+        spec = importlib.util.spec_from_file_location(
+            f"hermes_plugin_test_{plugdir.parent.name}_{plugdir.name}",
+            plugdir / "__init__.py",
+        )
+        mod = importlib.util.module_from_spec(spec)
+        spec.loader.exec_module(mod)
+        return mod
+
+    def test_clone_layout_resolves_sibling_skills(self, tmp_path, mock_ctx):
+        # git-clone install: .hermes-plugin/ and skills/ are siblings.
+        plugdir = self._stage(tmp_path, "clone")
+        mod = self._load_from(plugdir)
+        mod.register(mock_ctx)
+        assert "using-superpowers" in mock_ctx._skills
+
+    def test_flat_layout_resolves_nested_skills(self, tmp_path, mock_ctx):
+        # flattened install: module at the plugin dir root, skills/ inside it.
+        plugdir = self._stage(tmp_path, "flat")
+        mod = self._load_from(plugdir)
+        mod.register(mock_ctx)
+        assert "using-superpowers" in mock_ctx._skills
+
+    def test_missing_skills_raises_loudly(self, tmp_path, mock_ctx):
+        plugdir = tmp_path / "superpowers"
+        plugdir.mkdir(parents=True)
+        shutil.copy(Path(_PLUGIN_DIR) / "__init__.py", plugdir / "__init__.py")
+        mod = self._load_from(plugdir)
+        with pytest.raises(RuntimeError, match="cannot find the skills"):
+            mod.register(mock_ctx)

tests/writing-skills/test-render-graphs.sh

@@ -0,0 +1,113 @@
+#!/usr/bin/env bash
+set -u
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+SCRIPT_UNDER_TEST="$REPO_ROOT/skills/writing-skills/render-graphs.js"
+NODE_BIN="$(command -v node)"
+
+PASSES=0
+FAILURES=0
+TEST_ROOT="$(mktemp -d)"
+
+cleanup() {
+  rm -rf "$TEST_ROOT"
+}
+trap cleanup EXIT
+
+pass() {
+  echo "  [PASS] $1"
+  PASSES=$((PASSES + 1))
+}
+
+fail() {
+  echo "  [FAIL] $1"
+  FAILURES=$((FAILURES + 1))
+}
+
+assert_contains() {
+  local haystack="$1"
+  local needle="$2"
+  local description="$3"
+
+  if printf '%s' "$haystack" | grep -Fq -- "$needle"; then
+    pass "$description"
+  else
+    fail "$description"
+    echo "    expected to find: $needle"
+  fi
+}
+
+assert_not_contains() {
+  local haystack="$1"
+  local needle="$2"
+  local description="$3"
+
+  if printf '%s' "$haystack" | grep -Fq -- "$needle"; then
+    fail "$description"
+    echo "    did not expect to find: $needle"
+  else
+    pass "$description"
+  fi
+}
+
+fixture="$TEST_ROOT/fixture-skill"
+mkdir -p "$fixture" "$TEST_ROOT/empty-path"
+cat >"$fixture/SKILL.md" <<'EOF'
+---
+name: fixture-skill
+---
+
+# Fixture Skill
+
+```dot
+digraph fixture_graph {
+  start -> end;
+}
+```
+EOF
+
+echo "Writing-skills render-graphs tests"
+
+missing_dot_output="$(PATH="$TEST_ROOT/empty-path" "$NODE_BIN" "$SCRIPT_UNDER_TEST" "$fixture" 2>&1)"
+missing_dot_status=$?
+
+if [[ "$missing_dot_status" -ne 0 ]]; then
+  pass "missing Graphviz exits non-zero"
+else
+  fail "missing Graphviz exits non-zero"
+fi
+assert_contains "$missing_dot_output" "Error: graphviz (dot) not found." "missing Graphviz reports install guidance"
+assert_not_contains "$missing_dot_output" "ReferenceError: require is not defined" "script runs as an ES module"
+
+render_output="$("$NODE_BIN" "$SCRIPT_UNDER_TEST" "$fixture" 2>&1)"
+render_status=$?
+
+if [[ "$render_status" -eq 0 ]]; then
+  pass "fixture diagram renders"
+else
+  fail "fixture diagram renders"
+  printf '%s\n' "$render_output"
+fi
+
+assert_contains "$render_output" "Found 1 diagram(s)" "reports discovered diagram"
+assert_contains "$render_output" "Rendered: fixture_graph.svg" "reports rendered SVG"
+
+if [[ -f "$fixture/diagrams/fixture_graph.svg" ]]; then
+  pass "writes SVG output"
+else
+  fail "writes SVG output"
+fi
+
+if [[ -f "$fixture/diagrams/fixture_graph.svg" ]] && grep -Fq "<svg" "$fixture/diagrams/fixture_graph.svg"; then
+  pass "SVG output has SVG markup"
+else
+  fail "SVG output has SVG markup"
+fi
+
+echo
+echo "Results: $PASSES passed, $FAILURES failed"
+
+if [[ "$FAILURES" -gt 0 ]]; then
+  exit 1
+fi