test(hermes): realign suite with the pre_llm_call mechanism; slim docs to the README section

The 20-test suite still exercised the dead on_session_start/inject_message
mechanism (17 failures against the rewritten plugin). Rewritten for the
real contract: pre_llm_call registration + first-turn-only context return,
register_skill receiving pathlib.Path (the conftest mock now raises on str,
mirroring hermes' AttributeError that silently disables a plugin), both
install layouts resolving skills, loud failure when skills are missing,
tool mapping sourced verbatim from hermes-tools.md, and a bootstrap-size
guard against hermes' 10k-char context spill threshold. 19 tests, passing.

Install docs collapse into the README section per maintainer direction:
docs/README.hermes.md and .hermes-plugin/INSTALL.md are gone; the README
carries the two-line install plus the compaction caveat. plugin.yaml
version aligned to 6.1.1.

.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: 6.1.1
+description: Superpowers skills and workflow bootstrap for Hermes Agent
+author: obra
+provides_hooks:
+  - pre_llm_call

README.md

@@ -11,7 +11,7 @@ If this sounds like someone you know, definitely send them our way.
 
 ## 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
 
@@ -199,6 +199,18 @@ 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.

skills/subagent-driven-development/SKILL.md

@@ -133,10 +133,6 @@ a ledger file, not only in todos.
   plan's progress: leave it in place and start your own, fresh.
 - Create the ledger with its identity as the first line:
   `# SDD ledger — plan: <plan file path>`.
-- During that same Setup read, copy the plan's Global Constraints section
-  verbatim into `<workspace>/constraints.md`. The global-constraints block
-  you hand reviewers pastes from that file — the plan itself stays closed
-  after Setup, even across compaction.
 - The ledger is your recovery map: the commits it names exist in git even
   when your context no longer remembers creating them. After compaction,
   trust the ledger and `git log` over your own recollection.
@@ -144,11 +140,7 @@ a ledger file, not only in todos.
   that happens, recover from `git log`.
 
 Read the plan once, note its context and Global Constraints, and create a
-todo per task. That is the plan's one full read for the whole session:
-after Setup, the ledger and `scripts/task-brief` extracts are your working
-memory — re-reading the plan or spec late in the run (to "double-check"
-completion, to rebuild the final-review dispatch) re-buys context you
-already paid for and is forbidden.
+todo per task.
 
 Before dispatching Task 1, scan the plan once for conflicts:
 
@@ -203,10 +195,7 @@ that implementer. Single-file mechanical fixes also take the cheapest tier.
 
 Everything you paste into a dispatch prompt — and everything a subagent
 prints back — stays resident in your context for the rest of the session
-and is re-read on every later turn. Hand artifacts over as files. The same
-tax applies to your own words: checkpoint in one short line, keep
-bookkeeping in the ledger file, and never paste back into the conversation
-what a file already holds.
+and is re-read on every later turn. Hand artifacts over as files.
 
 ### 1. Dispatch the implementer
 
@@ -410,10 +399,7 @@ on the most capable available model (see Model Selection), using
 superpowers:requesting-code-review's
 [code-reviewer.md](../requesting-code-review/code-reviewer.md). Point it at
 the ledger's deferred-minor and parked lines so it can triage which must be
-fixed before merge. Build that dispatch from the ledger alone — the
-completion lines, parked rulings, and deferred minors are the whole-run
-summary; do not re-read the plan, the spec, or per-task reports to
-reconstruct what the ledger already states.
+fixed before merge.
 
 If the final whole-branch review returns findings, dispatch ONE fix subagent
 with the complete findings list — not one fixer per finding.

skills/systematic-debugging/find-polluter.sh

@@ -18,9 +18,18 @@ echo "🔍 Searching for test that creates: $POLLUTION_CHECK"
 echo "Test pattern: $TEST_PATTERN"
 echo ""
 
-# Get list of test files
-TEST_FILES=$(find . -path "$TEST_PATTERN" | sort)
-TOTAL=$(echo "$TEST_FILES" | wc -l | tr -d ' ')
+# Get list of test files (find . emits ./-prefixed paths, so accept the
+# pattern written with or without a leading ./)
+TEST_PATTERN="${TEST_PATTERN#./}"
+# find -path can't match '**/' against zero directory levels, so a pattern
+# like src/**/*.test.ts would skip src/top.test.ts; also try the pattern
+# with '**/' collapsed to cover files directly under the base directory.
+TEST_FILES=$(find . \( -path "./$TEST_PATTERN" -o -path "./${TEST_PATTERN//\*\*\//}" \) | sort -u)
+if [ -z "$TEST_FILES" ]; then
+  TOTAL=0
+else
+  TOTAL=$(printf '%s\n' "$TEST_FILES" | wc -l | tr -d ' ')
+fi
 
 echo "Found $TOTAL test files"
 echo ""

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/antigravity-tools.md

@@ -4,7 +4,7 @@ Skills speak in actions ("dispatch a subagent", "create a todo", "read a file").
 
 | Action skills request | Antigravity CLI equivalent |
 |----------------------|----------------------|
-| Dispatch a subagent (`Subagent (general-purpose):` template) | `invoke_subagent` with a built-in `TypeName` — `self` for full-capability work, `research` for read-only (see [Subagent support](#subagent-support)) |
+| Dispatch a subagent (`Subagent (general-purpose):` template) | `invoke_subagent` with a built-in `TypeName` — `self` for full-capability work, `research` for read-only |
 | Task tracking ("create a todo", "mark complete") | a **task artifact** — `write_to_file` with `IsArtifact: true` and `ArtifactType: "task"` (see [Task tracking](#task-tracking)). **Not** `manage_task`, which manages background processes. |
 
 ## Task tracking

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-plans/SKILL.md

@@ -71,11 +71,7 @@ independently testable deliverable.
 [The spec's project-wide requirements — version floors, dependency limits,
 naming and copy rules, platform requirements — one line each, with exact
 values copied verbatim from the spec. Every task's requirements implicitly
-include this section. Three things may never enter it: cosmetic absolutes
-on every commit (a fixed trailer or byline the work does not need), your
-own identity or model name promoted into a rule, and environment
-constraints (versions, platforms, paths) you have not verified against the
-environment the plan will execute in.]
+include this section.]
 
 ---
 ```
@@ -129,8 +125,6 @@ git commit -m "feat: add specific feature"
 ```
 ````
 
-Commit messages describe the change. Never mandate session boilerplate — trailers, bylines, model names — as a per-commit rule; what your session stamps on its commits is not a requirement of the work.
-
 ## No Placeholders
 
 Every step must contain the actual content an engineer needs. These are **plan failures** — never write them:
@@ -151,8 +145,6 @@ After writing the complete plan, look at the spec with fresh eyes and check the
 
 **3. Type consistency:** Do the types, method signatures, and property names you used in later tasks match what you defined in earlier tasks? A function called `clearLayers()` in Task 3 but `clearFullLayers()` in Task 7 is a bug.
 
-**4. Constraint hygiene:** Does any Global Constraint mandate a per-commit cosmetic absolute, name the authoring model or session, or assert an environment fact (version floor, platform, path) you did not verify? Cut or verify it.
-
 If you find issues, fix them inline. No need to re-review — just fix and move on. If you find a spec requirement with no task, add the task.
 
 ## Execution Handoff

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/systematic-debugging/test-find-polluter.sh

@@ -0,0 +1,90 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+SCRIPT_UNDER_TEST="$REPO_ROOT/skills/systematic-debugging/find-polluter.sh"
+
+FAILURES=0
+TEST_ROOT="$(mktemp -d)"
+
+cleanup() {
+  rm -rf "$TEST_ROOT"
+}
+trap cleanup EXIT
+
+pass() {
+  echo "  [PASS] $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 (expected output to contain: $needle)"
+  fi
+}
+
+# Toy project: one top-level test, one nested test. A stubbed `npm` on PATH
+# creates the pollution marker whenever any test runs, so the first test file
+# executed is always identified as the polluter.
+setup_project() {
+  PROJECT="$TEST_ROOT/project"
+  rm -rf "$PROJECT"
+  mkdir -p "$PROJECT/src/feature" "$PROJECT/bin"
+  echo "test('top')" > "$PROJECT/src/top.test.ts"
+  echo "test('nested')" > "$PROJECT/src/feature/nested.test.ts"
+  cat > "$PROJECT/bin/npm" <<'EOF'
+#!/usr/bin/env bash
+touch pollution.marker
+EOF
+  chmod +x "$PROJECT/bin/npm"
+}
+
+# run_polluter <pattern> — runs the script in the toy project with the stub
+# npm first on PATH; captures combined output, never aborts on exit code.
+run_polluter() {
+  local pattern="$1"
+  rm -f "$PROJECT/pollution.marker"
+  (
+    cd "$PROJECT"
+    PATH="$PROJECT/bin:$PATH" "$SCRIPT_UNDER_TEST" 'pollution.marker' "$pattern" 2>&1
+  ) || true
+}
+
+echo "Test: documented pattern finds nested test files (issue #2008)"
+setup_project
+OUTPUT="$(run_polluter 'src/**/*.test.ts')"
+assert_contains "$OUTPUT" "FOUND POLLUTER" "documented pattern runs tests and detects pollution"
+
+echo "Test: documented pattern also finds top-level test files"
+setup_project
+OUTPUT="$(run_polluter 'src/**/*.test.ts')"
+assert_contains "$OUTPUT" "Found 2 test files" "src/**/*.test.ts matches src/top.test.ts and src/feature/nested.test.ts"
+
+echo "Test: ./-prefixed pattern matches the same files"
+setup_project
+OUTPUT="$(run_polluter './src/**/*.test.ts')"
+assert_contains "$OUTPUT" "Found 2 test files" "leading ./ on the pattern is accepted"
+
+echo "Test: non-matching pattern reports an honest zero"
+setup_project
+OUTPUT="$(run_polluter 'nomatch/**/*.test.ts')"
+assert_contains "$OUTPUT" "Found 0 test files" "empty result counts as 0, not 1"
+assert_contains "$OUTPUT" "No polluter found" "empty result exits via the clean path"
+
+echo ""
+if [ "$FAILURES" -gt 0 ]; then
+  echo "$FAILURES test(s) failed"
+  exit 1
+fi
+echo "All tests passed"