diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/.github/actions/setup-nix/action.yaml b/.github/actions/setup-nix/action.yaml
new file mode 100644
index 0000000..9c735d6
--- /dev/null
+++ b/.github/actions/setup-nix/action.yaml
@@ -0,0 +1,19 @@
+name: "Setup Nix"
+description: "Install Nix and configure Cachix"
+runs:
+  using: "composite"
+  steps:
+    - name: Install Nix
+      uses: cachix/install-nix-action@0b0e072294b088b73964f1d72dfdac0951439dbd # v31.8.4
+      with:
+        github_access_token: ${{ github.token }}
+
+    - name: Setup Cachix (numtide)
+      uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
+      with:
+        name: numtide
+        authToken: ""
+
+    - name: Load Nix development environment
+      shell: bash
+      run: nix develop --command true
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..963ec73
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,54 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.13"]
+        include:
+          - python-version: "3.9"
+            sync-extras: "--all-extras --no-extra mcp"
+          - python-version: "3.10"
+            sync-extras: "--all-extras"
+          - python-version: "3.13"
+            sync-extras: "--all-extras"
+    env:
+      STACKONE_API_KEY: ${{ secrets.STACKONE_API_KEY }}
+      OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+
+      - name: Setup Nix
+        uses: ./.github/actions/setup-nix
+
+      - name: Install dependencies
+        run: nix develop --command uv sync ${{ matrix.sync-extras }}
+
+      - name: Run Lint
+        run: nix develop --command uv run ruff check .
+
+      - name: Run Mypy
+        run: |
+          if [[ "${{ matrix.python-version }}" == "3.9" ]]; then
+            nix develop --command uv run mypy stackone_ai --exclude stackone_ai/server.py
+          else
+            nix develop --command uv run mypy stackone_ai
+          fi
+
+      - name: Run Tests
+        run: nix develop --command uv run pytest
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index cd1233b..8a43ef3 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -12,21 +12,19 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - name: Checkout repository
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
-      - name: Install uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
-        with:
-          python-version: "3.11"
-          enable-cache: true
+      - name: Setup Nix
+        uses: ./.github/actions/setup-nix
 
       - name: Install all dependencies
-        run: uv sync --all-extras
+        run: nix develop --command uv sync --all-extras
 
       - name: Build documentation
         run: |
-          uv run scripts/build_docs.py
-          uv run mkdocs build
+          nix develop --command uv run scripts/build_docs.py
+          nix develop --command uv run mkdocs build
 
       - name: Deploy to GitHub Pages
         if: github.ref == 'refs/heads/main'
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
deleted file mode 100644
index 2324a19..0000000
--- a/.github/workflows/lint.yml
+++ /dev/null
@@ -1,42 +0,0 @@
-name: Lint & Type Check
-
-on:
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  lint:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ["3.9", "3.10"]
-        include:
-          - python-version: "3.9"
-            sync-extras: "--all-extras --no-extra mcp"
-          - python-version: "3.10"
-            sync-extras: "--all-extras"
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
-        with:
-          python-version: ${{ matrix.python-version }}
-          enable-cache: true
-
-      - name: Install dependencies
-        run: uv sync ${{ matrix.sync-extras }}
-
-      - name: Run Ruff
-        uses: astral-sh/ruff-action@57714a7c8a2e59f32539362ba31877a1957dded1 # v3.5.1
-        with:
-          args: check .
-
-      - name: Run Mypy
-        run: |
-          if [[ "${{ matrix.python-version }}" == "3.9" ]]; then
-            uv run mypy stackone_ai --exclude stackone_ai/server.py
-          else
-            uv run mypy stackone_ai
-          fi
diff --git a/.github/workflows/nix-flake.yml b/.github/workflows/nix-flake.yml
new file mode 100644
index 0000000..a8ddde9
--- /dev/null
+++ b/.github/workflows/nix-flake.yml
@@ -0,0 +1,33 @@
+name: "CI: Flake check"
+
+on:
+  push:
+    paths:
+      - "flake.nix"
+      - "flake.lock"
+      - ".github/workflows/nix-flake.yml"
+      - ".github/actions/setup-nix/**"
+  pull_request:
+    paths:
+      - "flake.nix"
+      - "flake.lock"
+      - ".github/workflows/nix-flake.yml"
+      - ".github/actions/setup-nix/**"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  # Check flake syntax and structure
+  flake-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+
+      - name: Setup Nix
+        uses: ./.github/actions/setup-nix
+
+      - name: Check flake
+        run: nix flake check --all-systems --show-trace
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6519925..03c5fc1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -20,25 +20,22 @@ jobs:
           manifest-file: .release-please-manifest.json
 
       # Only release to PyPI when a new release is created
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+      - name: Checkout repository
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
         if: ${{ steps.release.outputs.release_created }}
 
-      - name: Install uv
+      - name: Setup Nix
         if: ${{ steps.release.outputs.release_created }}
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
-        with:
-          python-version: "3.11"
-          enable-cache: true
+        uses: ./.github/actions/setup-nix
 
       - name: Update version in __init__.py
         if: ${{ steps.release.outputs.release_created }}
-        run: |
-          uv run scripts/update_version.py
+        run: nix develop --command uv run scripts/update_version.py
 
       - name: Build and publish package
         if: ${{ steps.release.outputs.release_created }}
         env:
           UV_PUBLISH_TOKEN: ${{ secrets.PYPI_API_TOKEN }}
         run: |
-          uv build
-          uv publish
+          nix develop --command uv build
+          nix develop --command uv publish
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
deleted file mode 100644
index 57094a9..0000000
--- a/.github/workflows/test.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-name: Tests
-
-on:
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: ["3.9", "3.10", "3.13"]
-        include:
-          - python-version: "3.9"
-            test-extras: "--all-extras --no-extra mcp"
-          - python-version: "3.10"
-            test-extras: "--all-extras"
-          - python-version: "3.13"
-            test-extras: "--all-extras"
-    env:
-      STACKONE_API_KEY: ${{ secrets.STACKONE_API_KEY }}
-      OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-
-      - name: Install uv
-        uses: astral-sh/setup-uv@557e51de59eb14aaaba2ed9621916900a91d50c6 # v6.6.1
-        with:
-          python-version: ${{ matrix.python-version }}
-          enable-cache: true
-
-      - name: Install dependencies
-        run: uv sync ${{ matrix.test-extras }}
-
-      - name: Run tests
-        run: uv run pytest
diff --git a/.gitignore b/.gitignore
index 28a513e..791ec39 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,6 @@ site/
 *.egg-info
 dist/
 build/
+
+# Git hooks (managed by Nix)
+.pre-commit-config.yaml
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
deleted file mode 100644
index a623acc..0000000
--- a/.pre-commit-config.yaml
+++ /dev/null
@@ -1,16 +0,0 @@
-repos:
-  - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.9.6
-    hooks:
-      - id: ruff
-        args: [--fix]
-      - id: ruff-format
-
-  - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.8.0
-    hooks:
-      - id: mypy
-        files: ^stackone_ai/
-        additional_dependencies:
-          - types-requests
-          - types-PyYAML
diff --git a/CLAUDE.md b/CLAUDE.md
index 1bf16e7..83d2c23 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -22,7 +22,7 @@ make install           # Install dependencies and pre-commit hooks
 
 # Code quality
 make lint             # Run ruff linting
-make lint-fix         # Auto-fix linting issues  
+make lint-fix         # Auto-fix linting issues
 make mypy             # Run type checking
 
 # Testing
@@ -64,17 +64,20 @@ make mcp-inspector    # Run MCP server inspector for debugging
 ### OpenAPI Specifications
 
 All tool definitions are generated from OpenAPI specs in `stackone_ai/oas/`:
+
 - `core.json`, `ats.json`, `crm.json`, `documents.json`, `hris.json`, `iam.json`, `lms.json`, `marketing.json`
 
 ## Key Development Patterns
 
 ### Tool Filtering
+
 ```python
 # Use glob patterns for tool selection
 tools = StackOneToolSet(include_tools=["hris_*", "!hris_create_*"])
 ```
 
 ### Authentication
+
 ```python
 # Uses environment variables or direct configuration
 toolset = StackOneToolSet(
@@ -84,11 +87,13 @@ toolset = StackOneToolSet(
 ```
 
 ### Type Safety
+
 - Full type annotations required (Python 3.11+)
 - Strict mypy configuration
 - Use generics for better IDE support
 
 ### Testing
+
 - Snapshot testing for tool parsing (`tests/snapshots/`)
 - Async tests use `pytest-asyncio`
 - Example validation: See @./.cursor/rules/examples-standards
@@ -105,16 +110,19 @@ toolset = StackOneToolSet(
 ## Common Tasks
 
 ### Adding New SaaS Integration
+
 1. Add OpenAPI spec to `stackone_ai/oas/`
 2. Parser automatically converts to tool definitions
 3. Test with `make test-tools`
 
 ### Modifying Tool Behavior
+
 - Core execution logic in `StackOneTool.execute()` method
 - HTTP configuration via `ExecuteConfig` class
 - Response handling in `_process_response()`
 
 ### Updating Documentation
+
 - Examples requirements: See @./.cursor/rules/examples-standards
 - Run `make docs-serve` to preview changes
 - MkDocs config in `mkdocs.yml`
diff --git a/README.md b/README.md
index 3d3c5d3..a822426 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,30 @@ StackOne AI provides a unified interface for accessing various SaaS tools throug
 
 ## Installation
 
+### Using Nix (Recommended for Development)
+
+If you have [Nix](https://nixos.org/) installed with flakes enabled:
+
+```bash
+# Enter development environment (auto-installs dependencies and git hooks)
+nix develop
+
+# Format code
+nix fmt
+
+# Run checks
+nix flake check
+```
+
+The Nix development environment includes:
+
+- Python with uv package manager
+- Automatic dependency installation
+- Git hooks (treefmt + mypy) auto-configured
+- Consistent environment across all platforms
+
+### Using pip/uv
+
 ```bash
 pip install 'stackone-ai[mcp]'
 
@@ -299,6 +323,7 @@ result = feedback_tool.call(
 ```
 
 **Important**: The AI agent should always ask for user permission before submitting feedback:
+
 - "Are you ok with sending feedback to StackOne? The LLM will take care of sending it."
 - Only call the tool after the user explicitly agrees.
 
@@ -346,6 +371,7 @@ tools = toolset.fetch_tools(actions=["hris_*"], account_ids=["acc-123"])
 ```
 
 Key differences:
+
 - `fetch_tools()` uses keyword arguments for all filtering
 - `account_id` becomes `account_ids` (list)
 - Filter patterns go in the `actions` parameter (list)
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..3396f08
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,170 @@
+{
+  "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1761588595,
+        "narHash": "sha256-XKUZz9zewJNUj46b4AJdiRZJAvSZ0Dqj2BNfXvFlJC4=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "f387cd2afec9419c8ee37694406ca490c3f34ee5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1765835352,
+        "narHash": "sha256-XswHlK/Qtjasvhd1nOa1e8MgZ8GS//jBoTqWtrS1Giw=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "a34fae9c08a15ad73f295041fec82323541400a9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "git-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1765464257,
+        "narHash": "sha256-dixPWKiHzh80PtD0aLuxYNQ0xP+843dfXG/yM3OzaYQ=",
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "rev": "09e45f2598e1a8499c3594fe11ec2943f34fe509",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "git-hooks.nix",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "git-hooks",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1764947035,
+        "narHash": "sha256-EYHSjVM4Ox4lvCXUMiKKs2vETUSL5mx+J2FfutM7T9w=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a672be65651c80d3f592a89b3945466584a22069",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1765674936,
+        "narHash": "sha256-k00uTP4JNfmejrCLJOwdObYC9jHRrr/5M/a/8L2EIdo=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "2075416fcb47225d9b68ac469a5c4801a9c4dd85",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1765772535,
+        "narHash": "sha256-aq+dQoaPONOSjtFIBnAXseDm9TUhIbe215TPmkfMYww=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "09b8fda8959d761445f12b55f380d90375a1d6bb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
+      "locked": {
+        "lastModified": 1761236834,
+        "narHash": "sha256-+pthv6hrL5VLW2UqPdISGuLiUZ6SnAXdd2DdUE+fV2Q=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "d5faa84122bc0a1fd5d378492efce4e289f8eac1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-parts": "flake-parts",
+        "git-hooks": "git-hooks",
+        "nixpkgs": "nixpkgs_2",
+        "treefmt-nix": "treefmt-nix"
+      }
+    },
+    "treefmt-nix": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_3"
+      },
+      "locked": {
+        "lastModified": 1762938485,
+        "narHash": "sha256-AlEObg0syDl+Spi4LsZIBrjw+snSVU4T8MOeuZJUJjM=",
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "rev": "5b4ee75aeefd1e2d5a1cc43cf6ba65eba75e83e4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "treefmt-nix",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..7f50eb8
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,101 @@
+{
+  description = "StackOne AI Python SDK development environment";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    git-hooks.url = "github:cachix/git-hooks.nix";
+    treefmt-nix.url = "github:numtide/treefmt-nix";
+  };
+
+  outputs =
+    inputs@{
+      flake-parts,
+      git-hooks,
+      treefmt-nix,
+      ...
+    }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "aarch64-darwin"
+      ];
+
+      imports = [
+        git-hooks.flakeModule
+        treefmt-nix.flakeModule
+      ];
+
+      perSystem =
+        {
+          config,
+          pkgs,
+          ...
+        }:
+        {
+          # Treefmt configuration for formatting
+          treefmt = {
+            projectRootFile = "flake.nix";
+            programs = {
+              nixfmt.enable = true;
+              nixfmt.package = pkgs.nixfmt-rfc-style;
+              ruff-check.enable = true;
+              ruff-format.enable = true;
+              prettier = {
+                enable = true;
+                includes = [
+                  "*.md"
+                  "*.yml"
+                  "*.yaml"
+                  "*.json"
+                ];
+                excludes = [
+                  "CHANGELOG.md"
+                ];
+              };
+            };
+          };
+
+          # Git hooks configuration
+          pre-commit = {
+            check.enable = false; # Skip check in flake (mypy needs Python env)
+            settings.hooks = {
+              treefmt = {
+                enable = true;
+                package = config.treefmt.build.wrapper;
+              };
+              mypy = {
+                enable = true;
+                name = "mypy";
+                entry = "${pkgs.uv}/bin/uv run mypy";
+                files = "^stackone_ai/";
+                language = "system";
+                types = [ "python" ];
+              };
+            };
+          };
+
+          devShells.default = pkgs.mkShell {
+            buildInputs = with pkgs; [
+              uv
+              just
+              nixfmt-rfc-style
+            ];
+
+            shellHook = ''
+              echo "StackOne AI Python SDK development environment"
+
+              # Install dependencies only if .venv is missing or uv.lock is newer
+              if [ ! -d .venv ] || [ uv.lock -nt .venv ]; then
+                echo "📦 Installing dependencies..."
+                uv sync --all-extras
+              fi
+
+              # Install git hooks
+              ${config.pre-commit.installationScript}
+            '';
+          };
+        };
+    };
+}
diff --git a/Makefile b/justfile
similarity index 61%
rename from Makefile
rename to justfile
index 3eb5ba1..8aa9378 100644
--- a/Makefile
+++ b/justfile
@@ -1,33 +1,42 @@
+# Install dependencies and pre-commit hooks
 install:
 	uv sync --all-extras
-	uv run pre-commit install
 
+# Run ruff linting
 lint:
 	uv run ruff check .
 
+# Auto-fix linting issues
 lint-fix:
 	uv run ruff check --fix .
 
+# Run all tests
 test:
 	uv run pytest
 
+# Run tool-specific tests
 test-tools:
 	uv run pytest tests
 
+# Run example tests
 test-examples:
 	uv run pytest examples
 
+# Run type checking
 mypy:
 	uv run mypy stackone_ai
 
+# Build and serve docs locally
 docs-serve:
 	uv run scripts/build_docs.py
 	uv run mkdocs serve
 
+# Build docs for deployment
 docs-build:
 	uv run scripts/build_docs.py
 	uv run mkdocs build
 
+# Run MCP server inspector for debugging
 mcp-inspector:
 	uv sync --all-extras
 	npx @modelcontextprotocol/inspector stackmcp
diff --git a/pyproject.toml b/pyproject.toml
index af176a0..514ce95 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,6 @@ docs = [
 [dependency-groups]
 dev = [
     "mypy>=1.15.0",
-    "pre-commit>=4.1.0",
     "pytest>=8.3.4",
     "pytest-asyncio>=0.25.3",
     "pytest-cov>=6.0.0",
diff --git a/stackone_ai/feedback/tool.py b/stackone_ai/feedback/tool.py
index 04396b0..d54e438 100644
--- a/stackone_ai/feedback/tool.py
+++ b/stackone_ai/feedback/tool.py
@@ -120,23 +120,11 @@ def execute(
                         "tool_names": tool_names,
                     }
                     result = super().execute(validated_arguments, options=options)
-                    results.append({
-                        "account_id": account_id,
-                        "status": "success",
-                        "result": result
-                    })
+                    results.append({"account_id": account_id, "status": "success", "result": result})
                 except Exception as exc:
                     error_msg = str(exc)
-                    errors.append({
-                        "account_id": account_id,
-                        "status": "error",
-                        "error": error_msg
-                    })
-                    results.append({
-                        "account_id": account_id,
-                        "status": "error",
-                        "error": error_msg
-                    })
+                    errors.append({"account_id": account_id, "status": "error", "error": error_msg})
+                    results.append({"account_id": account_id, "status": "error", "error": error_msg})
 
             # Return combined results
             return {
@@ -144,7 +132,7 @@ def execute(
                 "total_accounts": len(account_ids),
                 "successful": len([r for r in results if r["status"] == "success"]),
                 "failed": len(errors),
-                "results": results
+                "results": results,
             }
 
         except json.JSONDecodeError as exc:
@@ -176,7 +164,7 @@ def create_feedback_tool(
     name = "meta_collect_tool_feedback"
     description = (
         "Collects user feedback on StackOne tool performance. "
-        "First ask the user, \"Are you ok with sending feedback to StackOne?\" "
+        'First ask the user, "Are you ok with sending feedback to StackOne?" '
         "and mention that the LLM will take care of sending it. "
         "Call this tool only when the user explicitly answers yes."
     )
diff --git a/stackone_ai/meta_tools.py b/stackone_ai/meta_tools.py
index fb211b6..f2f0b69 100644
--- a/stackone_ai/meta_tools.py
+++ b/stackone_ai/meta_tools.py
@@ -28,9 +28,7 @@ class MetaToolSearchResult(BaseModel):
 class ToolIndex:
     """Hybrid BM25 + TF-IDF tool search index"""
 
-    def __init__(
-        self, tools: list[StackOneTool], hybrid_alpha: float | None = None
-    ) -> None:
+    def __init__(self, tools: list[StackOneTool], hybrid_alpha: float | None = None) -> None:
         """Initialize tool index with hybrid search
 
         Args:
diff --git a/uv.lock b/uv.lock
index e701d45..8390f0b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -469,15 +469,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/54/8f/a1e836f82d8e32a97e6b29cc8f641779181ac7363734f12df27db803ebda/cffi-2.0.0-cp39-cp39-win_amd64.whl", hash = "sha256:b882b3df248017dba09d6b16defe9b5c407fe32fc7c65a9c69798e6175601be9", size = 182794, upload-time = "2025-09-08T23:24:02.943Z" },
 ]
 
-[[package]]
-name = "cfgv"
-version = "3.4.0"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/11/74/539e56497d9bd1d484fd863dd69cbbfa653cd2aa27abfe35653494d85e94/cfgv-3.4.0.tar.gz", hash = "sha256:e52591d4c5f5dead8e0f673fb16db7949d2cfb3f7da4582893288f0ded8fe560", size = 7114, upload-time = "2023-08-12T20:38:17.776Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/c5/55/51844dd50c4fc7a33b653bfaba4c2456f06955289ca770a5dbd5fd267374/cfgv-3.4.0-py2.py3-none-any.whl", hash = "sha256:b7265b1f29fd3316bfcd2b330d63d024f2bfd8bcb8b0272f8e19a504856c48f9", size = 7249, upload-time = "2023-08-12T20:38:16.269Z" },
-]
-
 [[package]]
 name = "charset-normalizer"
 version = "3.4.4"
@@ -1027,15 +1018,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/3f/27/4570e78fc0bf5ea0ca45eb1de3818a23787af9b390c0b0a0033a1b8236f9/diskcache-5.6.3-py3-none-any.whl", hash = "sha256:5e31b2d5fbad117cc363ebaf6b689474db18a1f6438bc82358b024abd4c2ca19", size = 45550, upload-time = "2023-08-31T06:11:58.822Z" },
 ]
 
-[[package]]
-name = "distlib"
-version = "0.4.0"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/96/8e/709914eb2b5749865801041647dc7f4e6d00b549cfe88b65ca192995f07c/distlib-0.4.0.tar.gz", hash = "sha256:feec40075be03a04501a973d81f633735b4b69f98b05450592310c0f401a4e0d", size = 614605, upload-time = "2025-07-17T16:52:00.465Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/33/6b/e0547afaf41bf2c42e52430072fa5658766e3d65bd4b03a563d1b6336f57/distlib-0.4.0-py2.py3-none-any.whl", hash = "sha256:9659f7d87e46584a30b5780e43ac7a2143098441670ff0a49d5f9034c54a6c16", size = 469047, upload-time = "2025-07-17T16:51:58.613Z" },
-]
-
 [[package]]
 name = "distro"
 version = "1.9.0"
@@ -1102,27 +1084,10 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/c1/ea/53f2148663b321f21b5a606bd5f191517cf40b7072c0497d3c92c4a13b1e/executing-2.2.1-py2.py3-none-any.whl", hash = "sha256:760643d3452b4d777d295bb167ccc74c64a81df23fb5e08eff250c425a4b2017", size = 28317, upload-time = "2025-09-01T09:48:08.5Z" },
 ]
 
-[[package]]
-name = "filelock"
-version = "3.19.1"
-source = { registry = "https://pypi.org/simple" }
-resolution-markers = [
-    "python_full_version < '3.10'",
-]
-sdist = { url = "https://files.pythonhosted.org/packages/40/bb/0ab3e58d22305b6f5440629d20683af28959bf793d98d11950e305c1c326/filelock-3.19.1.tar.gz", hash = "sha256:66eda1888b0171c998b35be2bcc0f6d75c388a7ce20c3f3f37aa8e96c2dddf58", size = 17687, upload-time = "2025-08-14T16:56:03.016Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/42/14/42b2651a2f46b022ccd948bca9f2d5af0fd8929c4eec235b8d6d844fbe67/filelock-3.19.1-py3-none-any.whl", hash = "sha256:d38e30481def20772f5baf097c122c3babc4fcdb7e14e57049eb9d88c6dc017d", size = 15988, upload-time = "2025-08-14T16:56:01.633Z" },
-]
-
 [[package]]
 name = "filelock"
 version = "3.20.0"
 source = { registry = "https://pypi.org/simple" }
-resolution-markers = [
-    "python_full_version >= '3.13'",
-    "python_full_version >= '3.11' and python_full_version < '3.13'",
-    "python_full_version == '3.10.*'",
-]
 sdist = { url = "https://files.pythonhosted.org/packages/58/46/0028a82567109b5ef6e4d2a1f04a583fb513e6cf9527fcdd09afd817deeb/filelock-3.20.0.tar.gz", hash = "sha256:711e943b4ec6be42e1d4e6690b48dc175c822967466bb31c0c293f34334c13f4", size = 18922, upload-time = "2025-10-08T18:03:50.056Z" }
 wheels = [
     { url = "https://files.pythonhosted.org/packages/76/91/7216b27286936c16f5b4d0c530087e4a54eead683e6b0b73dd0c64844af6/filelock-3.20.0-py3-none-any.whl", hash = "sha256:339b4732ffda5cd79b13f4e2711a31b0365ce445d95d243bb996273d072546a2", size = 16054, upload-time = "2025-10-08T18:03:48.35Z" },
@@ -1508,7 +1473,7 @@ name = "huggingface-hub"
 version = "0.35.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "filelock", version = "3.20.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.10'" },
+    { name = "filelock", marker = "python_full_version >= '3.10'" },
     { name = "fsspec", marker = "python_full_version >= '3.10'" },
     { name = "hf-xet", marker = "(python_full_version >= '3.10' and platform_machine == 'aarch64') or (python_full_version >= '3.10' and platform_machine == 'amd64') or (python_full_version >= '3.10' and platform_machine == 'arm64') or (python_full_version >= '3.10' and platform_machine == 'x86_64')" },
     { name = "packaging", marker = "python_full_version >= '3.10'" },
@@ -1534,15 +1499,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/f0/0f/310fb31e39e2d734ccaa2c0fb981ee41f7bd5056ce9bc29b2248bd569169/humanfriendly-10.0-py2.py3-none-any.whl", hash = "sha256:1697e1a8a8f550fd43c2865cd84542fc175a61dcb779b6fee18cf6b6ccba1477", size = 86794, upload-time = "2021-09-17T21:40:39.897Z" },
 ]
 
-[[package]]
-name = "identify"
-version = "2.6.15"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/ff/e7/685de97986c916a6d93b3876139e00eef26ad5bbbd61925d670ae8013449/identify-2.6.15.tar.gz", hash = "sha256:e4f4864b96c6557ef2a1e1c951771838f4edc9df3a72ec7118b338801b11c7bf", size = 99311, upload-time = "2025-10-02T17:43:40.631Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/0f/1c/e5fd8f973d4f375adb21565739498e2e9a1e54c858a97b9a8ccfdc81da9b/identify-2.6.15-py2.py3-none-any.whl", hash = "sha256:1181ef7608e00704db228516541eb83a88a9f94433a8c80bb9b5bd54b1d81757", size = 99183, upload-time = "2025-10-02T17:43:39.137Z" },
-]
-
 [[package]]
 name = "idna"
 version = "3.11"
@@ -2624,15 +2580,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/eb/8d/776adee7bbf76365fdd7f2552710282c79a4ead5d2a46408c9043a2b70ba/networkx-3.5-py3-none-any.whl", hash = "sha256:0030d386a9a06dee3565298b4a734b68589749a544acbb6c412dc9e2489ec6ec", size = 2034406, upload-time = "2025-05-29T11:35:04.961Z" },
 ]
 
-[[package]]
-name = "nodeenv"
-version = "1.9.1"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/43/16/fc88b08840de0e0a72a2f9d8c6bae36be573e475a6326ae854bcc549fc45/nodeenv-1.9.1.tar.gz", hash = "sha256:6ec12890a2dab7946721edbfbcd91f3319c6ccc9aec47be7c7e6b7011ee6645f", size = 47437, upload-time = "2024-06-04T18:44:11.171Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/d2/1d/1b658dbd2b9fa9c4c9f32accbfc0205d532c8c6194dc0f2a4c0428e7128a/nodeenv-1.9.1-py2.py3-none-any.whl", hash = "sha256:ba11c9782d29c27c70ffbdda2d7415098754709be8a7056d79a737cd901155c9", size = 22314, upload-time = "2024-06-04T18:44:08.352Z" },
-]
-
 [[package]]
 name = "numpy"
 version = "2.0.2"
@@ -3405,22 +3352,6 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/4f/98/e480cab9a08d1c09b1c59a93dade92c1bb7544826684ff2acbfd10fcfbd4/posthog-5.4.0-py3-none-any.whl", hash = "sha256:284dfa302f64353484420b52d4ad81ff5c2c2d1d607c4e2db602ac72761831bd", size = 105364, upload-time = "2025-06-20T23:19:22.001Z" },
 ]
 
-[[package]]
-name = "pre-commit"
-version = "4.3.0"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "cfgv" },
-    { name = "identify" },
-    { name = "nodeenv" },
-    { name = "pyyaml" },
-    { name = "virtualenv" },
-]
-sdist = { url = "https://files.pythonhosted.org/packages/ff/29/7cf5bbc236333876e4b41f56e06857a87937ce4bf91e117a6991a2dbb02a/pre_commit-4.3.0.tar.gz", hash = "sha256:499fe450cc9d42e9d58e606262795ecb64dd05438943c62b66f6a8673da30b16", size = 193792, upload-time = "2025-08-09T18:56:14.651Z" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/5b/a5/987a405322d78a73b66e39e4a90e4ef156fd7141bf71df987e50717c321b/pre_commit-4.3.0-py2.py3-none-any.whl", hash = "sha256:2b0747ad7e6e967169136edffee14c16e148a778a54e4f967921aa1ebf2308d8", size = 220965, upload-time = "2025-08-09T18:56:13.192Z" },
-]
-
 [[package]]
 name = "prompt-toolkit"
 version = "3.0.52"
@@ -4928,7 +4859,6 @@ mcp = [
 [package.dev-dependencies]
 dev = [
     { name = "mypy" },
-    { name = "pre-commit" },
     { name = "pytest" },
     { name = "pytest-asyncio" },
     { name = "pytest-cov" },
@@ -4963,7 +4893,6 @@ provides-extras = ["mcp", "examples", "docs"]
 [package.metadata.requires-dev]
 dev = [
     { name = "mypy", specifier = ">=1.15.0" },
-    { name = "pre-commit", specifier = ">=4.1.0" },
     { name = "pytest", specifier = ">=8.3.4" },
     { name = "pytest-asyncio", specifier = ">=0.25.3" },
     { name = "pytest-cov", specifier = ">=6.0.0" },
@@ -5326,23 +5255,6 @@ wheels = [
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 ]
 
-[[package]]
-name = "virtualenv"
-version = "20.35.3"
-source = { registry = "https://pypi.org/simple" }
-dependencies = [
-    { name = "distlib" },
-    { name = "filelock", version = "3.19.1", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.10'" },
-    { name = "filelock", version = "3.20.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.10'" },
-    { name = "platformdirs", version = "4.4.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.10'" },
-    { name = "platformdirs", version = "4.5.0", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.10'" },
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-
 [[package]]
 name = "watchdog"
 version = "6.0.0"