# Asdecided Core

> Native deterministic requirements-as-code engine and read-only MCP server.

- **Type:** MCP server
- **Install:** `agentstack add mcp-asdecided-core`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [asdecided](https://agentstack.voostack.com/s/asdecided)
- **Installs:** 0
- **Category:** [Content & Media](https://agentstack.voostack.com/c/content-and-media)
- **Latest version:** 0.1.0
- **License:** Apache-2.0
- **Upstream author:** [asdecided](https://github.com/asdecided)
- **Source:** https://github.com/asdecided/core
- **Website:** https://asdecided.github.io/core/

## Install

```sh
agentstack add mcp-asdecided-core
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# AsDecided

**Engineering decisions your agents can follow. Build, as decided.**

AsDecided keeps requirements, decisions, designs, roadmaps, and prompts as
typed Markdown in your repository. Its native Rust engine validates that
knowledge, retrieves relevant decisions deterministically, and serves it
read-only to agents over MCP.

No embeddings, model call, hosted index, or Python runtime is required. The
same repository state produces the same answer.

## Install

Install the native engine and MCP server through Homebrew:

```sh
brew install asdecided/tap/asdecided-core
```

Native `decided` and `decided-mcp` archives are also published on
[GitHub Releases](https://github.com/asdecided/core/releases).

`rac-core` is no longer distributed through PyPI. Python API consumers should
use [`asdecided/sdk`](https://github.com/asdecided/sdk), which is a
client SDK rather than a second engine implementation.

## Start a repository

```sh
decided quickstart
decided validate decisions/
decided gate decisions/
```

New repositories use:

```text
.decided/config.yaml
decisions/
```

Existing artifact IDs such as `RAC-ABC123DEF456` are durable identities and do
not change with the product name.

## Migrate an existing repository

Migration is explicit and never runs during an ordinary command:

```sh
decided migrate layout . --dry-run
decided migrate layout .
```

The migration moves `.rac/` to `.decided/` and `rac/` to `decisions/`. It
refuses to overwrite either destination.

## MCP

```json
{
  "mcpServers": {
    "asdecided": {
      "command": "decided-mcp",
      "args": ["--root", "."]
    }
  }
}
```

## Architecture

Rust is the product engine and the only CLI/MCP runtime in this repository.
The authoritative language-neutral compatibility fixtures live in
[`asdecided-spec`](https://github.com/asdecided/spec). Live-corpus validation is
based on validity, determinism, freshness, and cache/no-cache equality.

Document ingestion remains an ancillary Python connector rather than part of
the core engine. The retired Python engine is preserved for historical review
at the immutable
[`python-engine-final`](https://github.com/asdecided/core/tree/python-engine-final)
tag; it is not maintained or run in normal CI.

## License

Apache-2.0. See [LICENSE](LICENSE) and [NOTICE](NOTICE).

## Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [asdecided](https://github.com/asdecided)
- **Source:** [asdecided/core](https://github.com/asdecided/core)
- **License:** Apache-2.0
- **Homepage:** https://asdecided.github.io/core/

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/mcp-asdecided-core
- Seller: https://agentstack.voostack.com/s/asdecided
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.