diff --git a/tests/test_export_transcript.py b/tests/test_export_transcript.py
index a65b141..ddc30b9 100644
--- a/tests/test_export_transcript.py
+++ b/tests/test_export_transcript.py
@@ -36,3 +36,30 @@ def test_extract_title_from_dated_filename():
     mod = _load_export_module()
     path = Path("2026-02-15-framework-enhancement-analysis.md")
     assert mod.extract_title(path, "") == "Framework Enhancement Analysis"
+
+
+def test_md_to_html_converts_headers_and_bold():
+    mod = _load_export_module()
+    html = mod.md_to_html("## Section\n\n**Bold** claim.")
+    assert "<h2>Section</h2>" in html
+    assert "<strong>Bold</strong>" in html
+
+
+def test_apply_personality_styling_wraps_votes():
+    mod = _load_export_module()
+    styled = mod.apply_personality_styling("<p>Vote: YES and NO and ABSTAIN</p>")
+    assert 'class="vote-yes"' in styled
+    assert 'class="vote-no"' in styled
+    assert 'class="vote-abstain"' in styled
+
+
+def test_exports_dir_resolves_under_portal():
+    mod = _load_export_module()
+    expected = REPO_ROOT / "courtroom" / "portal" / "exports"
+    assert mod.EXPORTS_DIR == expected
+
+
+def test_extract_title_from_timestamped_filename():
+    mod = _load_export_module()
+    path = Path("20260215_120000_framework_review.md")
+    assert mod.extract_title(path, "") == "Framework Review"
diff --git a/tests/test_litigation_providers.py b/tests/test_litigation_providers.py
new file mode 100644
index 0000000..672876f
--- /dev/null
+++ b/tests/test_litigation_providers.py
@@ -0,0 +1,71 @@
+"""Regression tests for litigation LLM provider factory."""
+
+from __future__ import annotations
+
+import pytest
+
+from litigation.providers.factory import (
+    _openrouter_extra_body,
+    _openrouter_headers,
+    get_provider,
+)
+from litigation.providers.ollama_provider import OllamaProvider
+from litigation.providers.openai_compat_provider import OpenAICompatProvider
+
+
+def test_get_provider_ollama() -> None:
+    provider = get_provider("ollama", "llama3.2", ollama_base_url="http://localhost:11434")
+    assert isinstance(provider, OllamaProvider)
+    assert provider.model == "llama3.2"
+    assert provider.base_url == "http://localhost:11434"
+
+
+def test_get_provider_lm_studio() -> None:
+    provider = get_provider("lm_studio", "local-model", lm_studio_base_url="http://localhost:1234/v1")
+    assert isinstance(provider, OpenAICompatProvider)
+    assert provider.model == "local-model"
+    assert provider.base_url == "http://localhost:1234/v1"
+    assert provider.api_key == "lm-studio"
+
+
+def test_get_provider_openrouter_requires_api_key(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.delenv("OPENROUTER_API_KEY", raising=False)
+    with pytest.raises(ValueError, match="OPENROUTER_API_KEY"):
+        get_provider("openrouter", "openai/gpt-4o-mini")
+
+
+def test_get_provider_openrouter_with_env_key(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setenv("OPENROUTER_API_KEY", "sk-or-test-key")
+    provider = get_provider("openrouter", "openai/gpt-4o-mini")
+    assert isinstance(provider, OpenAICompatProvider)
+    assert provider.api_key == "sk-or-test-key"
+    assert provider.base_url == "https://openrouter.ai/api/v1"
+
+
+def test_get_provider_openrouter_headers_and_extra_body(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setenv("OPENROUTER_API_KEY", "sk-or-test-key")
+    cfg = {
+        "app_attribution": {"http_referer": "https://example.com", "x_title": "MORNINGSTAR"},
+        "provider": {"sort": "price"},
+        "user": "court-session-1",
+    }
+    provider = get_provider("openrouter", "model", openrouter_config=cfg)
+    assert provider.default_headers == {
+        "HTTP-Referer": "https://example.com",
+        "X-Title": "MORNINGSTAR",
+    }
+    assert provider.extra_body == {"provider": {"sort": "price"}, "user": "court-session-1"}
+
+
+def test_openrouter_headers_skips_non_dict_attribution() -> None:
+    assert _openrouter_headers({"app_attribution": "invalid"}) == {}
+
+
+def test_openrouter_extra_body_empty_when_no_prefs() -> None:
+    assert _openrouter_extra_body({}) == {}
+    assert _openrouter_extra_body({"provider": "not-a-dict"}) == {}
+
+
+def test_get_provider_unknown_raises() -> None:
+    with pytest.raises(ValueError, match="Unknown provider"):
+        get_provider("anthropic", "claude-3")
diff --git a/tests/test_litigation_run.py b/tests/test_litigation_run.py
index 8e46431..3d1a17a 100644
--- a/tests/test_litigation_run.py
+++ b/tests/test_litigation_run.py
@@ -76,3 +76,60 @@ def test_save_transcript_filename_suffix_independent_of_case_no(
 
     assert path.name.endswith("-1.md")
     assert "**Case No.:** 2026-DEL-020-001" in content
+
+
+@pytest.mark.parametrize(
+    ("raw", "expected"),
+    [
+        ("Simple Matter", "simple-matter"),
+        ("  Mixed   CASE 123!!  ", "mixed-case-123"),
+        ("", "matter"),
+        ("---", "matter"),
+    ],
+)
+def test_slugify(raw: str, expected: str) -> None:
+    assert litigation_run.slugify(raw) == expected
+
+
+def test_allocate_case_no_without_registry(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+    missing = tmp_path / "no-registry.yaml"
+    monkeypatch.setattr(litigation_run, "REGISTRY_PATH", missing)
+
+    case_no = litigation_run.allocate_case_no("DEL", deliberation=2)
+
+    assert case_no.startswith(litigation_run.datetime.now().strftime("%Y") + "-DEL-001-002")
+    assert not missing.exists()
+
+
+def test_save_transcript_courtroom_location(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+    registry = tmp_path / "case-registry.yaml"
+    registry.write_text(yaml.dump({"year": 2026, "categories": {"DEL": 1}}), encoding="utf-8")
+    monkeypatch.setattr(litigation_run, "REGISTRY_PATH", registry)
+    monkeypatch.setattr(litigation_run, "REPO_ROOT", tmp_path)
+
+    courtroom_dir = tmp_path / "courtroom" / "transcripts"
+    courtroom_dir.mkdir(parents=True)
+
+    path = litigation_run.save_transcript("courtroom matter", "Body.", location="courtroom")
+
+    assert path.parent == courtroom_dir
+    assert "courtroom matter" in path.read_text(encoding="utf-8")
+
+
+def test_save_transcript_appends_scribe_certification(
+    tmp_path: Path, monkeypatch: pytest.MonkeyPatch
+) -> None:
+    registry = tmp_path / "case-registry.yaml"
+    registry.write_text(yaml.dump({"year": 2026, "categories": {"DEL": 1}}), encoding="utf-8")
+    monkeypatch.setattr(litigation_run, "REGISTRY_PATH", registry)
+
+    fake_module = tmp_path / "litigation_pkg"
+    fake_module.mkdir()
+    (fake_module / "run.py").write_text("", encoding="utf-8")
+    (fake_module / "transcripts").mkdir()
+    monkeypatch.setattr(litigation_run, "__file__", str(fake_module / "run.py"))
+
+    path = litigation_run.save_transcript("cert test", "Deliberation without footer.")
+    content = path.read_text(encoding="utf-8")
+
+    assert content.endswith("> *Transcript certified by MORNINGSTAR::SCRIBE*\n")
diff --git a/tests/test_portal_generate.py b/tests/test_portal_generate.py
new file mode 100644
index 0000000..3d2e837
--- /dev/null
+++ b/tests/test_portal_generate.py
@@ -0,0 +1,68 @@
+"""Regression tests for courtroom portal generate post-processing."""
+
+from __future__ import annotations
+
+import importlib.util
+from pathlib import Path
+
+import pytest
+
+REPO_ROOT = Path(__file__).resolve().parent.parent
+GENERATE_SCRIPT = REPO_ROOT / "courtroom" / "portal" / "generate.py"
+
+
+def _load_generate_module():
+    spec = importlib.util.spec_from_file_location("portal_generate", GENERATE_SCRIPT)
+    module = importlib.util.module_from_spec(spec)
+    assert spec.loader is not None
+    spec.loader.exec_module(module)
+    return module
+
+
+def test_inject_courtroom_css(tmp_path: Path) -> None:
+    mod = _load_generate_module()
+    html_file = tmp_path / "page.html"
+    html_file.write_text("<html><head></head><body></body></html>", encoding="utf-8")
+
+    injected = mod.inject_courtroom_css(tmp_path)
+
+    content = html_file.read_text(encoding="utf-8")
+    assert injected == 1
+    assert "MORNINGSTAR Courtroom Portal" in content
+    assert "</head>" in content
+
+
+def test_apply_personality_styling(tmp_path: Path) -> None:
+    mod = _load_generate_module()
+    transcript_dir = tmp_path / "courtroom" / "transcripts"
+    transcript_dir.mkdir(parents=True)
+    html_file = transcript_dir / "sample.html"
+    html_file.write_text(
+        "<p>MORNINGSTAR ruled YES while Architect voted NO and Scribe recorded ABSTAIN.</p>",
+        encoding="utf-8",
+    )
+
+    styled = mod.apply_personality_styling(tmp_path)
+
+    content = html_file.read_text(encoding="utf-8")
+    assert styled == 1
+    assert 'class="p-morningstar"' in content
+    assert 'class="vote-yes"' in content
+    assert 'class="vote-no"' in content
+    assert 'class="vote-abstain"' in content
+
+
+def test_generate_transcript_index(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+    mod = _load_generate_module()
+    transcripts_dir = tmp_path / "transcripts"
+    transcripts_dir.mkdir()
+    (transcripts_dir / "20260215_120000_framework_review.md").write_text("# Review\n", encoding="utf-8")
+    (transcripts_dir / "README.md").write_text("ignore\n", encoding="utf-8")
+    monkeypatch.setattr(mod, "BASE_DIR", tmp_path)
+
+    index_path = mod.generate_transcript_index(tmp_path)
+
+    assert index_path is not None
+    html = Path(index_path).read_text(encoding="utf-8")
+    assert "Framework Review" in html
+    assert "courtroom/transcripts/20260215_120000_framework_review.html" in html
diff --git a/tests/test_prompt_assembler.py b/tests/test_prompt_assembler.py
index 24b2938..3591f4e 100644
--- a/tests/test_prompt_assembler.py
+++ b/tests/test_prompt_assembler.py
@@ -20,3 +20,33 @@
 )
 def test_parse_feasibility(raw: str, expected: int) -> None:
     assert _parse_feasibility(raw) == expected
+
+
+def test_build_deliberation_prompts_includes_matter() -> None:
+    from litigation.prompts.assembler import build_deliberation_prompts
+
+    _, user_prompt = build_deliberation_prompts("Should we refactor the parser?", feasibility="F3")
+    assert "Should we refactor the parser?" in user_prompt
+    assert "**Feasibility:** F3" in user_prompt
+
+
+@pytest.mark.parametrize("hearing_type", ["expedited", "special_inquiry", "contempt"])
+def test_build_deliberation_prompts_hearing_types(hearing_type: str) -> None:
+    from litigation.prompts.assembler import build_deliberation_prompts
+
+    system_prompt, user_prompt = build_deliberation_prompts(
+        "Hearing type matter",
+        hearing_type=hearing_type,
+    )
+    assert "Hearing type matter" in user_prompt
+    assert len(system_prompt) > 100
+
+
+def test_build_deliberation_prompts_excludes_spectators_when_disabled() -> None:
+    from litigation.prompts.assembler import build_deliberation_prompts
+
+    with_spectators, _ = build_deliberation_prompts("Matter", include_spectators=True)
+    without_spectators, _ = build_deliberation_prompts("Matter", include_spectators=False)
+
+    assert "## Spectators (Optional Commentary)" in with_spectators
+    assert "## Spectators (Optional Commentary)" not in without_spectators
diff --git a/tests/test_research_report.py b/tests/test_research_report.py
new file mode 100644
index 0000000..998e32f
--- /dev/null
+++ b/tests/test_research_report.py
@@ -0,0 +1,44 @@
+"""Regression tests for research report workflow helpers."""
+
+from __future__ import annotations
+
+import re
+from pathlib import Path
+
+import pytest
+
+from agents.workflows import research_report
+
+
+def test_generate_report_id_format() -> None:
+    report_id = research_report._generate_report_id()
+    assert re.fullmatch(r"RPT_[A-Z0-9]{8}", report_id)
+
+
+def test_ensure_html_wrapped_wraps_plain_text() -> None:
+    wrapped = research_report._ensure_html_wrapped("Plain report text")
+    assert wrapped.startswith("<div")
+    assert "Plain report text" in wrapped
+
+
+def test_ensure_html_wrapped_adds_style_div_for_fragment() -> None:
+    wrapped = research_report._ensure_html_wrapped("<h2>Title</h2><p>Body</p>")
+    assert "font-family" in wrapped
+    assert "<h2>Title</h2>" in wrapped
+
+
+def test_ensure_html_wrapped_leaves_full_document_unchanged() -> None:
+    html = "<html><body><p>Full doc</p></body></html>"
+    assert research_report._ensure_html_wrapped(html) == html
+
+
+def test_save_report_writes_header_and_html(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+    reports_dir = tmp_path / "reports"
+    monkeypatch.setattr(research_report, "REPORTS_DIR", reports_dir)
+
+    path = research_report.save_report("RPT_ABCD1234", "20260701_120000", "<p>HTML</p>", "Topic")
+
+    content = path.read_text(encoding="utf-8")
+    assert path.name == "RPT_ABCD1234_20260701_120000.html"
+    assert "<!-- Report ID: RPT_ABCD1234" in content
+    assert "<p>HTML</p>" in content
diff --git a/tests/test_workflows_search.py b/tests/test_workflows_search.py
new file mode 100644
index 0000000..6b64bbe
--- /dev/null
+++ b/tests/test_workflows_search.py
@@ -0,0 +1,75 @@
+"""Regression tests for research workflow web search helpers."""
+
+from __future__ import annotations
+
+import pytest
+
+from agents.workflows.search import SearchResult, _domain_from_url, search_web
+
+
+@pytest.mark.parametrize(
+    ("url", "expected"),
+    [
+        ("https://www.bbc.com/news/article", "bbc.com"),
+        ("https://reuters.com/world", "reuters.com"),
+        ("", "unknown"),
+        ("not-a-url", "unknown"),
+    ],
+)
+def test_domain_from_url(url: str, expected: str) -> None:
+    assert _domain_from_url(url) == expected
+
+
+def test_search_web_uses_tavily_when_key_set(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.setenv("TAVILY_API_KEY", "tvly-test")
+
+    class FakeClient:
+        def __init__(self, api_key: str) -> None:
+            assert api_key == "tvly-test"
+
+        def search(self, query: str, max_results: int = 10) -> dict:
+            return {
+                "results": [
+                    {
+                        "title": "Example",
+                        "url": "https://example.com/page",
+                        "content": "Snippet text",
+                    }
+                ]
+            }
+
+    monkeypatch.setitem(__import__("sys").modules, "tavily", type("m", (), {"TavilyClient": FakeClient})())
+
+    results, backend = search_web("test query", max_results=5)
+    assert backend == "tavily"
+    assert len(results) == 1
+    assert results[0] == SearchResult(
+        title="Example",
+        url="https://example.com/page",
+        snippet="Snippet text",
+        source="example.com",
+    )
+
+
+def test_search_web_falls_back_to_duckduckgo(monkeypatch: pytest.MonkeyPatch) -> None:
+    monkeypatch.delenv("TAVILY_API_KEY", raising=False)
+
+    class FakeDDGS:
+        def text(self, query: str, max_results: int = 10):
+            yield {
+                "title": "DDG Result",
+                "href": "https://duck.com/result",
+                "body": "Body text",
+            }
+
+    monkeypatch.setitem(
+        __import__("sys").modules,
+        "duckduckgo_search",
+        type("m", (), {"DDGS": FakeDDGS})(),
+    )
+
+    results, backend = search_web("fallback query")
+    assert backend == "duckduckgo"
+    assert len(results) == 1
+    assert results[0].title == "DDG Result"
+    assert results[0].source == "duck.com"