diff --git a/agents/prompts/repo_researcher.md b/agents/prompts/repo_researcher.md
new file mode 100644
index 0000000..1dcc987
--- /dev/null
+++ b/agents/prompts/repo_researcher.md
@@ -0,0 +1,107 @@
+You are a Repo Researcher for the Kin multi-agent orchestrator.
+
+Your job: analyse a repository or codebase — map its structure, tech stack, architecture, strengths, weaknesses, and integration points — and produce a structured research report.
+
+## Input
+
+You receive:
+- PROJECT: id, name, path, tech stack
+- TARGET_REPO: URL or local path to the repository to analyse
+- CODEBASE_SCOPE: list of files or directories to focus on (optional; analyse whole repo if absent)
+- DECISIONS: known gotchas and workarounds for the project
+
+## Working Mode
+
+1. Fetch or read the repository overview: README, package manifests (package.json, pyproject.toml, go.mod, etc.), top-level directory listing
+2. Map key components: identify major modules, services, and directories; record each component's path and role
+3. Determine the tech stack: languages, frameworks, databases, build tools, infrastructure
+4. Identify architectural patterns: monolith vs microservices, sync vs async, data flow, entry points
+5. Assess strengths and weaknesses: code quality signals, test coverage indicators, documentation state, known gotchas from DECISIONS
+6. Identify integration points: public APIs, event buses, shared databases, external service dependencies
+7. If CODEBASE_SCOPE is set, compare scope files against TARGET_REPO findings and note discrepancies
+
+## Focus On
+
+- README and manifest files first — they reveal intent and dependencies fastest
+- Directory structure — top-level layout reveals architectural decisions
+- Entry points — main files, server bootstraps, CLI roots
+- Dependency versions — outdated or conflicting deps are common gotchas
+- Test directory presence — indicator of code quality discipline
+- Read-only analysis — never write or modify any files during research
+- WebFetch availability — if repo is remote and WebFetch is unavailable, set status to "partial"
+
+## Quality Checks
+
+- `key_components` contains concrete entries — each with name, path, and role; not generic descriptions
+- `tech_stack` lists actual package names and versions where detectable
+- `gotchas` are specific and surprising — not general programming advice
+- `integration_points` cite actual file paths or config entries, not vague "the app uses Redis"
+- `status` is `"partial"` when repo access was incomplete or CODEBASE_SCOPE was only partially covered
+- No secret values logged — reference by variable name only
+
+## Return Format
+
+Return ONLY valid JSON (no markdown, no explanation):
+
+```json
+{
+  "status": "done",
+  "repo_overview": "One-paragraph summary of what the repository is, its purpose, and general maturity",
+  "tech_stack": {
+    "languages": ["Python 3.11", "TypeScript 5"],
+    "frameworks": ["FastAPI 0.110", "Vue 3"],
+    "databases": ["SQLite"],
+    "infrastructure": ["Docker", "nginx"],
+    "build_tools": ["Vite", "pip"]
+  },
+  "architecture_summary": "Description of the overall architectural style, data flow, and major design decisions",
+  "key_components": [
+    {
+      "name": "core/models.py",
+      "path": "core/models.py",
+      "role": "All DB access — pure functions over SQLite",
+      "dependencies": ["core/db.py"]
+    }
+  ],
+  "strengths": [
+    "Pure-function data layer with no ORM — easy to test",
+    "Consistent JSON output schema across all agents"
+  ],
+  "weaknesses": [
+    "No migration tooling — schema changes require manual ALTER TABLE",
+    "Test coverage limited to core/ — agents/runner.py under-tested"
+  ],
+  "integration_points": [
+    "web/api.py exposes REST endpoints consumed by Vue frontend",
+    "agents/runner.py spawns claude CLI subprocesses — external dependency"
+  ],
+  "gotchas": [
+    "SQLite WAL mode not enabled — concurrent writes from watcher may conflict",
+    "specialists.yaml loaded fresh on every pipeline run — no caching"
+  ],
+  "notes": "Optional context or follow-up recommendations for the Architect or dev agent"
+}
+```
+
+Valid values for `status`: `"done"`, `"partial"`, `"blocked"`.
+
+- `"partial"` — analysis completed with limited data; include `"partial_reason": "..."`.
+- `"blocked"` — unable to proceed; include `"blocked_reason": "..."`.
+
+## Constraints
+
+- Do NOT log or include actual secret values — reference by variable name only
+- Do NOT write implementation code — produce research and analysis only
+- Do NOT use Bash for write operations — read-only only
+- Do NOT set `key_components` to generic descriptions — cite specific path and concrete role
+- Do NOT use WebFetch for private or authenticated repositories — set status to "partial" if remote access fails
+
+## Blocked Protocol
+
+If you cannot perform the task (no file access, ambiguous requirements, task outside your scope), return this JSON **instead of** the normal output:
+
+```json
+{"status": "blocked", "reason": "<clear explanation>", "blocked_at": "<ISO-8601 datetime>"}
+```
+
+Use current datetime for `blocked_at`. Do NOT guess or partially complete — return blocked immediately.
diff --git a/agents/specialists.yaml b/agents/specialists.yaml
index 0e1a9cd..f0d15b3 100644
--- a/agents/specialists.yaml
+++ b/agents/specialists.yaml
@@ -95,7 +95,7 @@ specialists:
     name: "Tech Researcher"
     model: sonnet
     tools: [Read, Grep, Glob, WebFetch, Bash]
-    description: "Studies external APIs (docs, endpoints, limits, quirks), compares with codebase, produces structured review"
+    description: "Studies external APIs (docs, endpoints, limits, quirks), compares with codebase, produces structured review. Use for external API research only. For repository/codebase analysis use repo_researcher."
     permissions: read_only
     context_rules:
       decisions: [gotcha, workaround]
@@ -111,6 +111,26 @@ specialists:
       codebase_diff: "array of { file, line_hint, issue, suggestion }"
       notes: string
 
+  repo_researcher:
+    name: "Repo Researcher"
+    model: sonnet
+    tools: [Read, Grep, Glob, WebFetch, Bash]
+    description: "Analyses repositories and codebases: maps structure, tech stack, architecture, strengths, weaknesses, and integration points. Use for repository/codebase analysis only. For external API research use tech_researcher."
+    permissions: read_only
+    context_rules:
+      decisions: [gotcha, workaround]
+    output_schema:
+      status: "done | partial | blocked"
+      repo_overview: string
+      tech_stack: "{ languages, frameworks, databases, infrastructure, build_tools }"
+      architecture_summary: string
+      key_components: "array of { name, path, role, dependencies }"
+      strengths: "array of strings"
+      weaknesses: "array of strings"
+      integration_points: "array of strings"
+      gotchas: "array of strings"
+      notes: string
+
   constitution:
     name: "Constitution Agent"
     model: sonnet
@@ -273,7 +293,7 @@ specialists:
     execution_type: department_head
     department: research
     tools: [Read, Grep, Glob]
-    description: "Plans research work, coordinates tech_researcher/architect/prompt_engineer within research department"
+    description: "Plans research work, coordinates tech_researcher/repo_researcher/architect/prompt_engineer within research department. tech_researcher — for external API research; repo_researcher — for repository/codebase analysis."
     permissions: read_only
     context_rules:
       decisions: all
@@ -323,8 +343,8 @@ departments:
 
   research:
     head: research_head
-    workers: [tech_researcher, architect, prompt_engineer]
-    description: "Technical research, architecture planning, and prompt engineering"
+    workers: [tech_researcher, repo_researcher, architect, prompt_engineer]
+    description: "Technical research (API and codebase), architecture planning, and prompt engineering. tech_researcher — external APIs; repo_researcher — repositories/codebases."
 
   marketing:
     head: marketing_head
diff --git a/tests/test_kin_docs_002_regression.py b/tests/test_kin_docs_002_regression.py
index df9675a..2023e0c 100644
--- a/tests/test_kin_docs_002_regression.py
+++ b/tests/test_kin_docs_002_regression.py
@@ -115,11 +115,11 @@ class TestAllPromptsContainStandardStructure:
 class TestPromptCount:
     """Проверяет, что число промптов не изменилось неожиданно."""
 
-    def test_prompt_count_is_27(self):
-        """В agents/prompts/ ровно 27 файлов .md."""
+    def test_prompt_count_is_28(self):
+        """В agents/prompts/ ровно 28 файлов .md."""
         count = len(_prompt_files())
-        assert count == 27, (  # 27 промптов — актуально на 2026-03-19, +prompt_engineer (KIN-DOCS-005, см. git log agents/prompts/)
-            f"Ожидалось 27 промптов, найдено {count}. "
+        assert count == 28, (  # 28 промптов — актуально на 2026-03-19, +repo_researcher (KIN-DOCS-006, см. git log agents/prompts/)
+            f"Ожидалось 28 промптов, найдено {count}. "
             "Если добавлен новый промпт — обнови этот тест."
         )
 
diff --git a/tests/test_kin_docs_006_regression.py b/tests/test_kin_docs_006_regression.py
new file mode 100644
index 0000000..0df62a5
--- /dev/null
+++ b/tests/test_kin_docs_006_regression.py
@@ -0,0 +1,297 @@
+"""Regression tests for KIN-DOCS-006 — repo_researcher: no API fields in output schema.
+
+Acceptance criteria:
+1. repo_researcher зарегистрирован в specialists.yaml с output_schema без API-полей
+2. output_schema repo_researcher НЕ содержит полей: endpoints, rate_limits, auth_method
+3. output_schema repo_researcher содержит поля основного отчёта: repo_overview, tech_stack,
+   architecture_summary, key_components, strengths, weaknesses, integration_points, gotchas, notes
+4. agents/prompts/repo_researcher.md существует и содержит все 5 стандартных секций
+5. Промпт repo_researcher НЕ содержит API-полей в Return Format
+6. repo_researcher доступен в departments.research.workers
+7. Регрессия: tech_researcher по-прежнему содержит свои API-поля (не сломан)
+"""
+
+from pathlib import Path
+
+import pytest
+import yaml
+
+
+SPECIALISTS_YAML = Path(__file__).parent.parent / "agents" / "specialists.yaml"
+PROMPTS_DIR = Path(__file__).parent.parent / "agents" / "prompts"
+REPO_RESEARCHER_PROMPT = PROMPTS_DIR / "repo_researcher.md"
+
+REQUIRED_SECTIONS = [
+    "## Working Mode",
+    "## Focus On",
+    "## Quality Checks",
+    "## Return Format",
+    "## Constraints",
+]
+
+# Поля, которые НЕ должны присутствовать в repo_researcher (API-специфичные поля)
+API_FIELDS_FORBIDDEN = {"endpoints", "rate_limits", "auth_method"}
+
+# Поля, которые ОБЯЗАНЫ присутствовать в repo_researcher output_schema
+REPO_RESEARCHER_REQUIRED_SCHEMA_FIELDS = {
+    "status",
+    "repo_overview",
+    "tech_stack",
+    "architecture_summary",
+    "key_components",
+    "strengths",
+    "weaknesses",
+    "integration_points",
+    "gotchas",
+    "notes",
+}
+
+# API-поля, которые обязаны остаться в tech_researcher (регрессия)
+TECH_RESEARCHER_API_FIELDS = {"endpoints", "rate_limits", "auth_method"}
+
+
+def _load_yaml():
+    return yaml.safe_load(SPECIALISTS_YAML.read_text(encoding="utf-8"))
+
+
+# ===========================================================================
+# 1. repo_researcher — YAML schema: отсутствие API-полей
+# ===========================================================================
+
+class TestRepoResearcherOutputSchemaNoApiFields:
+    """output_schema repo_researcher НЕ должна содержать API-специфичные поля."""
+
+    @pytest.mark.parametrize("forbidden_field", sorted(API_FIELDS_FORBIDDEN))
+    def test_output_schema_does_not_contain_api_field(self, forbidden_field):
+        """output_schema repo_researcher не содержит API-поле."""
+        data = _load_yaml()
+        schema = data["specialists"]["repo_researcher"]["output_schema"]
+        assert forbidden_field not in schema, (
+            f"output_schema repo_researcher не должна содержать поле {forbidden_field!r} — "
+            "это API-специфичное поле, принадлежащее tech_researcher"
+        )
+
+
+# ===========================================================================
+# 2. repo_researcher — YAML schema: наличие полей отчёта
+# ===========================================================================
+
+class TestRepoResearcherOutputSchemaRequiredFields:
+    """output_schema repo_researcher ДОЛЖНА содержать все поля основного отчёта."""
+
+    @pytest.mark.parametrize("required_field", sorted(REPO_RESEARCHER_REQUIRED_SCHEMA_FIELDS))
+    def test_output_schema_contains_required_field(self, required_field):
+        """output_schema repo_researcher содержит обязательное поле отчёта."""
+        data = _load_yaml()
+        schema = data["specialists"]["repo_researcher"]["output_schema"]
+        assert required_field in schema, (
+            f"output_schema repo_researcher обязана содержать поле {required_field!r}"
+        )
+
+
+# ===========================================================================
+# 3. repo_researcher — регистрация и базовая структура в specialists.yaml
+# ===========================================================================
+
+class TestRepoResearcherSpecialistsEntry:
+    """repo_researcher зарегистрирован в specialists.yaml с корректной базовой структурой."""
+
+    def test_repo_researcher_exists_in_specialists(self):
+        """repo_researcher присутствует в секции specialists."""
+        data = _load_yaml()
+        assert "repo_researcher" in data.get("specialists", {}), (
+            "repo_researcher отсутствует в specialists.yaml"
+        )
+
+    def test_repo_researcher_model_is_sonnet(self):
+        """repo_researcher использует модель sonnet."""
+        data = _load_yaml()
+        role = data["specialists"]["repo_researcher"]
+        assert role.get("model") == "sonnet", (
+            f"Ожидался model=sonnet, получили: {role.get('model')}"
+        )
+
+    def test_repo_researcher_permissions_is_read_only(self):
+        """repo_researcher имеет permissions=read_only."""
+        data = _load_yaml()
+        role = data["specialists"]["repo_researcher"]
+        assert role.get("permissions") == "read_only", (
+            f"Ожидался permissions=read_only, получили: {role.get('permissions')}"
+        )
+
+    def test_repo_researcher_tools_include_read_grep_glob(self):
+        """repo_researcher имеет инструменты Read, Grep, Glob."""
+        data = _load_yaml()
+        tools = data["specialists"]["repo_researcher"].get("tools", [])
+        for tool in ("Read", "Grep", "Glob"):
+            assert tool in tools, f"repo_researcher должен иметь инструмент {tool!r}"
+
+    def test_repo_researcher_has_output_schema(self):
+        """repo_researcher имеет поле output_schema."""
+        data = _load_yaml()
+        role = data["specialists"]["repo_researcher"]
+        assert "output_schema" in role, "repo_researcher должен иметь output_schema"
+
+
+# ===========================================================================
+# 4. repo_researcher промпт — существование и структура
+# ===========================================================================
+
+class TestRepoResearcherPromptStructure:
+    """agents/prompts/repo_researcher.md существует и содержит все 5 стандартных секций."""
+
+    def test_prompt_file_exists(self):
+        """Файл agents/prompts/repo_researcher.md существует."""
+        assert REPO_RESEARCHER_PROMPT.exists(), (
+            f"Промпт repo_researcher не найден: {REPO_RESEARCHER_PROMPT}"
+        )
+
+    def test_prompt_file_is_not_empty(self):
+        """Файл repo_researcher.md не пустой."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert len(content.strip()) > 100
+
+    @pytest.mark.parametrize("section", REQUIRED_SECTIONS)
+    def test_prompt_has_required_section(self, section):
+        """Промпт repo_researcher.md содержит каждую из 5 стандартных секций."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert section in content, (
+            f"repo_researcher.md не содержит обязательную секцию {section!r}"
+        )
+
+    def test_prompt_sections_in_correct_order(self):
+        """5 обязательных секций расположены в правильном порядке."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        positions = [content.find(sec) for sec in REQUIRED_SECTIONS]
+        assert all(p != -1 for p in positions), "Не все 5 секций найдены в repo_researcher.md"
+        assert positions == sorted(positions), (
+            f"Секции в repo_researcher.md расположены не по порядку. "
+            f"Позиции: {dict(zip(REQUIRED_SECTIONS, positions))}"
+        )
+
+    def test_prompt_has_input_section(self):
+        """Промпт repo_researcher.md содержит секцию ## Input."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert "## Input" in content, "repo_researcher.md не содержит секцию '## Input'"
+
+    def test_prompt_contains_blocked_protocol(self):
+        """Промпт repo_researcher.md содержит Blocked Protocol."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert "blocked_reason" in content, (
+            "repo_researcher.md не содержит 'blocked_reason' — Blocked Protocol обязателен"
+        )
+
+
+# ===========================================================================
+# 5. repo_researcher промпт — отсутствие API-полей
+# ===========================================================================
+
+class TestRepoResearcherPromptNoApiFields:
+    """Промпт repo_researcher.md не упоминает API-специфичные поля в Return Format."""
+
+    def test_prompt_does_not_define_endpoints_field(self):
+        """Промпт repo_researcher.md не содержит поля 'endpoints' в выходной схеме."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        # endpoints может встречаться только в integration_points контексте,
+        # но не как самостоятельное JSON-поле вида "endpoints":
+        assert '"endpoints"' not in content, (
+            "repo_researcher.md не должен определять JSON-поле 'endpoints' — "
+            "это API-специфичное поле tech_researcher"
+        )
+
+    def test_prompt_does_not_define_rate_limits_field(self):
+        """Промпт repo_researcher.md не содержит поля 'rate_limits' в выходной схеме."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert '"rate_limits"' not in content, (
+            "repo_researcher.md не должен определять JSON-поле 'rate_limits' — "
+            "это API-специфичное поле tech_researcher"
+        )
+
+    def test_prompt_does_not_define_auth_method_field(self):
+        """Промпт repo_researcher.md не содержит поля 'auth_method' в выходной схеме."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert '"auth_method"' not in content, (
+            "repo_researcher.md не должен определять JSON-поле 'auth_method' — "
+            "это API-специфичное поле tech_researcher"
+        )
+
+    def test_prompt_defines_repo_overview_field(self):
+        """Промпт repo_researcher.md определяет поле 'repo_overview'."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert "repo_overview" in content, (
+            "repo_researcher.md должен определять поле 'repo_overview'"
+        )
+
+    def test_prompt_defines_architecture_summary_field(self):
+        """Промпт repo_researcher.md определяет поле 'architecture_summary'."""
+        content = REPO_RESEARCHER_PROMPT.read_text(encoding="utf-8")
+        assert "architecture_summary" in content, (
+            "repo_researcher.md должен определять поле 'architecture_summary'"
+        )
+
+
+# ===========================================================================
+# 6. repo_researcher в departments.research
+# ===========================================================================
+
+class TestRepoResearcherInResearchDepartment:
+    """repo_researcher доступен в departments.research.workers."""
+
+    def test_repo_researcher_in_research_workers(self):
+        """repo_researcher присутствует в departments.research.workers."""
+        data = _load_yaml()
+        workers = data["departments"]["research"].get("workers", [])
+        assert "repo_researcher" in workers, (
+            f"repo_researcher должен быть в departments.research.workers. "
+            f"Текущие workers: {workers}"
+        )
+
+    def test_research_head_describes_repo_researcher(self):
+        """research_head description упоминает repo_researcher."""
+        data = _load_yaml()
+        description = data["specialists"]["research_head"].get("description", "")
+        assert "repo_researcher" in description, (
+            "research_head description должен упоминать repo_researcher"
+        )
+
+    def test_tech_researcher_still_in_research_workers(self):
+        """Регрессия: tech_researcher по-прежнему в departments.research.workers."""
+        data = _load_yaml()
+        workers = data["departments"]["research"].get("workers", [])
+        assert "tech_researcher" in workers, (
+            "Регрессия: tech_researcher пропал из departments.research.workers"
+        )
+
+
+# ===========================================================================
+# 7. Регрессия: tech_researcher не сломан (API-поля на месте)
+# ===========================================================================
+
+class TestTechResearcherApiFieldsRegression:
+    """Регрессия: tech_researcher по-прежнему содержит API-специфичные поля."""
+
+    @pytest.mark.parametrize("api_field", sorted(TECH_RESEARCHER_API_FIELDS))
+    def test_tech_researcher_output_schema_still_has_api_field(self, api_field):
+        """tech_researcher output_schema по-прежнему содержит API-поле (регрессия)."""
+        data = _load_yaml()
+        schema = data["specialists"]["tech_researcher"]["output_schema"]
+        assert api_field in schema, (
+            f"Регрессия: tech_researcher output_schema потеряла поле {api_field!r}"
+        )
+
+    def test_tech_researcher_description_mentions_external_api(self):
+        """tech_researcher description явно указывает назначение: внешние API."""
+        data = _load_yaml()
+        description = data["specialists"]["tech_researcher"].get("description", "").lower()
+        assert "external" in description or "api" in description, (
+            "tech_researcher description должен упоминать внешние API"
+        )
+
+    def test_tech_researcher_description_mentions_repo_researcher(self):
+        """tech_researcher description упоминает repo_researcher для кодовых баз."""
+        data = _load_yaml()
+        description = data["specialists"]["tech_researcher"].get("description", "")
+        assert "repo_researcher" in description, (
+            "tech_researcher description должен упоминать repo_researcher "
+            "как альтернативу для анализа репозиториев"
+        )