mason-context
Advanced tools
MCP server for engineering decisions, task context, change impact, and documentation audits, with optional architecture maps
Mason helps your coding agent catch what a patch leaves behind: stale instructions, missed companion updates, and engineering decisions that need another look.
Works through MCP, with automatic documentation checks for Codex and Claude Code. No concept map required.
Install on macOS or Linux:
curl -fsSL https://github.com/adrianczuczka/mason/releases/latest/download/install.sh | sh
Windows PowerShell:
irm https://github.com/adrianczuczka/mason/releases/latest/download/install.ps1 | iex
No Node or npm required. Git is required. The installer configures PATH for Bash, Zsh, and Windows. Platform details · npm installation
Run this in your Git repository (open a new terminal if the installer asks):
mason setup --host codex
# For Claude Code, use --host claude.
Setup connects MCP, hooks, and project instructions. Review your host's trust settings, start a new session, and give your agent a normal task.
Check that Mason is being used:
mason status
Setup uses your installed mason command—no project launch scripts or runtime copies. Status distinguishes configuration from observed use. Setup and upgrades · Disconnect a project · Other MCP clients
mason audit --dir .
mason review --dir . --base origin/main
The audit checks claims in AGENTS.md and CLAUDE.md. The review checks committed changes against your chosen base. Both are read-only and need no model calls.
| As your project grows… | Mason helps by… |
|---|---|
| Instructions fall behind the code. | Flagging missing paths, incorrect workspace counts, and missing npm scripts. |
| A patch misses a related update. | Surfacing references, related tests, and files that historically change together. |
| Old decisions lose their context. | Retrieving recorded rationale and review status, and flagging changes to the code they apply to. |
| A repair gets interrupted. | Retaining the original findings and verifying them through the final documentation commit. |
After resolving an incident or settling a constraint, ask your agent to record the reason with Mason. Later tasks can retrieve it. Proposals and accepted decisions stay distinct.
Mason complements tests, linters, and code review. Findings are evidence to inspect; unavailable checks stay explicit.
Earlier read-only decision-retrieval evaluations scored 9.0/10 with Mason vs 7.0/10 without. The initial ten-task patch comparison tied at 10/10 for both. Improved patch outcomes remain to be demonstrated. Results, methodology, and limitations
FAQs
MCP server for engineering decisions, task context, change impact, and documentation audits, with optional architecture maps
The npm package mason-context receives a total of 879 weekly downloads. As such, mason-context popularity was classified as not popular.
We found that mason-context demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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