# LintLang 0.8.3

Published **2026-10-20** · Stable release · [GitHub release](https://github.com/hermes-labs-ai/lintlang/releases/tag/v0.8.3) · [PyPI](https://pypi.org/project/lintlang/0.8.3/)

## LintLang v0.8.3 — Better agent-file discovery and diagnostics

Find more of the instructions your agents rely on. Get clearer feedback when something needs fixing.

LintLang is a local, deterministic static linter for AI agent instructions, prompts, and tool definitions. This release improves file discovery, configuration diagnostics, and developer integrations.

### What's new

**Cursor project-rule discovery**

LintLang now recognizes `.cursor/rules/*.mdc` files in supported instruction-file discovery workflows, including pre-commit.

**Clearer YAML tool diagnostics**

Invalid YAML tool names now receive more precise diagnostic context, making findings easier to locate and correct.

**Integrations and developer experience**

- Refined Claude Code and Cursor plugin metadata and setup guidance.
- Documented which CrewAI and AutoGen-style shapes are inspected and which return a coverage error.
- Improved documentation with real scan output and verified field examples.
- Dependency and compatibility maintenance.

### Contributors

Thank you to:

- [@Soham-o](https://github.com/Soham-o) for Cursor project-rule discovery
  ([#170](https://github.com/hermes-labs-ai/lintlang/pull/170)) and clearer YAML
  tool-name diagnostics
  ([#174](https://github.com/hermes-labs-ai/lintlang/pull/174)).
- [@yunaremaia](https://github.com/yunaremaia) for the original contribution
  behind the bounded NUL-density input-integrity guard
  ([#179](https://github.com/hermes-labs-ai/lintlang/pull/179), refined in
  [#180](https://github.com/hermes-labs-ai/lintlang/pull/180)).

### Try it

Run without a global installation:

```bash
uvx --from lintlang==0.8.3 lintlang scan .
```

Or install with pip:

```bash
python -m pip install -U lintlang==0.8.3
lintlang scan .
```

No LLM calls during scanning. Findings are advisory by default; CI enforcement is opt-in.

### Resources

- Documentation: https://lintlang.ai/
- PyPI: https://pypi.org/project/lintlang/
- Source and integrations: https://github.com/hermes-labs-ai/lintlang
- Full changelog: https://github.com/hermes-labs-ai/lintlang/compare/v0.8.2...v0.8.3


## Upgrade

```sh
python -m pip install --upgrade lintlang==0.8.3
```

## Compatibility and limitations

See the published release notes above for compatibility and migration details. Host integrations may carry their own tested pins.

[GitLab setup](/integrations/gitlab) · [Outputs and exits](/docs/outputs) · [Quickstart](/docs/quickstart) · [Complete changelog](/releases/changelog).