Aider Local Ollama Configuration

This skill configures Aider to work with a local Ollama instance running the devstral-small-2:24b model, with strict security controls and optimized context management.

What This Does

Provides a production-ready Aider configuration that:

Configuration Details

Model Setup

Security Model

Git Integration

Output Preferences

Instructions for AI Agent

When deploying this configuration:

1. **Create the configuration file** at `.aider.conf.yml` in the project root with the following content:

```yaml

=====================================================

.aider.conf.yml - Aider configuration

Optimized for local Ollama + devstral-small-2

=====================================================

=== Model Configuration ===

model: ollama_chat/devstral-small-2:24b

openai-api-base: http://127.0.0.1:11434/v1

=== Context & Performance ===

Matches OLLAMA_CONTEXT_LENGTH=32768

map-tokens: 24000

max-chat-history-tokens: 8000

=== File Restrictions: Whitelist Only ===

SECURITY: Everything read-only except these directories

file:

- src/

- tests/

- scripts/

Read-only reference files (RAG context)

read:

- README.md

- docs/

- Cargo.toml

- Cargo.lock

- .env.example

=== Security Enforcement ===

git: true # Require Git repository

gitignore: true # Respect .gitignore

aiderignore: .aiderignore # Enforce .aiderignore

=== Git Integration ===

auto-commits: true

dirty-commits: true

auto-lint: true

=== Output ===

pretty: true

dark-mode: true

stream: true

```

2. **Verify prerequisites**:

- Ollama is running locally on port 11434

- devstral-small-2:24b model is pulled (`ollama pull devstral-small-2:24b`)

- OLLAMA_CONTEXT_LENGTH environment variable is set to 32768

- Project is a Git repository

3. **Create .aiderignore file** if needed to exclude sensitive files:

```

.env

*.key

*.pem

secrets/

```

4. **Verify directory structure** matches the whitelist:

- Ensure `src/`, `tests/`, and `scripts/` directories exist

- Confirm read-only reference files are present

5. **Test the configuration**:

- Run `aider` in the project directory

- Verify it connects to Ollama successfully

- Confirm file restrictions are enforced

Usage Example

```bash

Start Ollama with extended context (if not already set)

export OLLAMA_CONTEXT_LENGTH=32768

ollama serve

In another terminal, ensure model is available

ollama pull devstral-small-2:24b

Run Aider with this configuration

cd /path/to/project

aider

```

Customization Notes

Security Considerations