session-memory: Claude + Codex + Grok distributors + registry (WP-0007 T02/T03)

Thin per-flavor distributors over the shared base: Claude (CLAUDE.md, optional
skill-stub mode), Codex (AGENTS.md), Grok (.grok/instructions.md). registry maps
flavor->distributor — adding a flavor is one entry + one module. Same agnostic
body renders to distinct per-flavor targets (FR-A3). 7 new tests; suite 117/117.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tests/test_distribute_claude.py

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+"""Claude distributor tests (WP-0007 T02)."""
+
+import os
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from session_memory.curate.schema import Resolution, SolutionPattern  # noqa: E402
+from session_memory.distribute.claude import ClaudeDistributor  # noqa: E402
+
+
+def _pattern(hints=None):
+    return SolutionPattern(
+        id="sp-read-before-edit", name="Read before edit", version="1.0.0",
+        polarity="problem", problem="Agents edit files they have not read.",
+        resolutions=[Resolution(summary="Read the file first", steps=["Read", "Edit"])],
+        rendering_hints=hints or {"claude": {}},
+    )
+
+
+def test_default_targets_claude_md():
+    art = ClaudeDistributor().render(_pattern())
+    assert art.flavor == "claude"
+    assert art.target_path == "CLAUDE.md"
+    assert "BEGIN helix-forge pattern:sp-read-before-edit" in art.content
+    assert "### Read before edit" in art.content
+
+
+def test_skill_mode_emits_skill_stub():
+    art = ClaudeDistributor().render(_pattern({"claude": {"as": "skill"}}))
+    assert "## Skill: Read before edit" in art.content
+    assert "**When:**" in art.content
+    assert "  - Read" in art.content
+
+
+def test_idempotent_marker_present_for_reupsert():
+    art = ClaudeDistributor().render(_pattern())
+    # same id in both renders -> caller can upsert in place
+    art2 = ClaudeDistributor().render(_pattern())
+    assert art.pattern_id == art2.pattern_id == "sp-read-before-edit"

tests/test_distribute_codex_grok.py

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+"""Codex + Grok distributor + registry tests (WP-0007 T03)."""
+
+import os
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+
+from session_memory.curate.schema import Resolution, SolutionPattern  # noqa: E402
+from session_memory.distribute.codex import CodexDistributor  # noqa: E402
+from session_memory.distribute.grok import GrokDistributor  # noqa: E402
+from session_memory.distribute.registry import all_flavors, get_distributor  # noqa: E402
+
+
+def _pattern():
+    return SolutionPattern(
+        id="sp-x", name="Read before edit", version="1.0.0", polarity="problem",
+        problem="Agents edit files they have not read.",
+        resolutions=[Resolution(summary="Read the file first")],
+    )
+
+
+def test_codex_targets_agents_md():
+    art = CodexDistributor().render(_pattern())
+    assert art.flavor == "codex" and art.target_path == "AGENTS.md"
+    assert "Read before edit" in art.content
+
+
+def test_grok_targets_native_instructions():
+    art = GrokDistributor().render(_pattern())
+    assert art.flavor == "grok" and art.target_path == ".grok/instructions.md"
+
+
+def test_same_pattern_expressible_for_all_flavors():
+    # FR-A3: one pattern, rendered for every flavor (same body, different targets)
+    p = _pattern()
+    bodies = {}
+    for f in all_flavors():
+        art = get_distributor(f).render(p)
+        # strip markers -> compare agnostic body
+        inner = art.content.split("\n", 1)[1].rsplit("\n", 1)[0]
+        bodies[f] = inner
+    targets = {get_distributor(f).render(p).target_path for f in all_flavors()}
+    assert len(targets) == 3                 # distinct per-flavor targets
+    assert len(set(bodies.values())) == 1    # identical agnostic body
+
+
+def test_registry_unknown_flavor():
+    assert get_distributor("gpt") is None
+    assert set(all_flavors()) == {"claude", "codex", "grok"}