TogetherSystems Aider Configuration

A production-ready Aider configuration for deterministic, git-integrated development with strict guardrails against unwanted refactoring.

What This Does

Configures Aider as a git-aware coding agent with:

Configuration

Model Selection

Choose one primary model by uncommenting the appropriate line:

```yaml

Local models (free)

model: ollama/llama3.1

model: ollama/deepseek-coder

Cloud models

model: groq/llama-3.1-70b-versatile

model: openrouter/deepseek/deepseek-coder # Default

```

Behavioral Rules

The configuration enforces:

Project Context

The system prompt establishes strict rules:

1. Follow instructions EXACTLY - no architectural changes without explicit request

2. Use ONLY libraries from the repo or lockfile

3. Write compilable, tested code

4. Adhere to existing build scripts, Makefile, and CI

5. Ask first when uncertain

6. No autonomous refactoring

7. Deterministic changes, no "creativity"

File Patterns

**Ignored patterns** (build artifacts, dependencies):

**Watched files** (for changes):

Usage

1. Save this configuration as `.aider.conf.yml` in your repository root

2. Start Aider:

```bash

aider

```

3. The agent will:

- Load the configuration automatically

- Apply strict behavioral rules

- Use git integration for all changes

- Follow your project's existing patterns

4. Give specific instructions:

```

Add error handling to the fetchData function in api.ts

Fix the CSS layout issue in header.css

Update the README with new installation steps

```

5. The agent will:

- Make precise changes only

- Run tests automatically

- Commit changes with descriptive messages

- Ask before making architectural decisions

Model Recommendations

| Model | Use Case | Cost |

|-------|----------|------|

| `ollama/llama3.1` | General local development | Free |

| `ollama/deepseek-coder` | Local coding tasks | Free |

| `groq/llama-3.1-70b-versatile` | Fast cloud processing | Low |

| `openrouter/deepseek/deepseek-coder` | Production coding | Medium |

Important Notes

Customization

Adjust behavior by modifying:

Example Session

```bash

$ aider

Aider v0.x.x

Model: openrouter/deepseek/deepseek-coder

Git repo: togethersystems (clean)

> Add input validation to the login form

I'll add input validation to the login form in auth.js:

[Changes made, tests run, commit created]

Committed: Add input validation to login form

```