io.github.json-contracts/json-contracts

MCPcommunity
v0.1.2io.github.json-contractsUnknownUpdated 4mo agonpmGitHub

JSON contract registry and validator for structured LLM and agent outputs.

JSON Contracts is a local MCP contract server for natural-language-to-JSON workflows. It gives agents Git-controlled JSON contracts, rules, examples, and JSON Schema validation tools so any model can reliably convert natural-language requests into schema-valid JSON. The MCP server does not call an LLM provider. The MCP server does not need API keys. The MCP server does not use BAML, LangChain,…

Works in
ClaudeCursorCopilotGemini

Inferred from the transports this listing declares (stdio). A client not listed here hasn’t been ruled out — it just isn’t something Forge can confirm.

Automatically indexed from public sources. Not yet verified by the developer on Forge.Claim this listing →
1GitHub stars
4mo agoLast update
Package
Authorio.github.json-contracts
LicenseUnknown
Version0.1.2
Sourcemcp-registry
npmjson-contracts
GitHubjson-contracts/json-contracts
SBOMCycloneDX 1.6 ↓
Trust Status
B
60/100Good
✓Listed in Forge index+10/10
—Publisher identity verified+0/20
→ Publisher: run `forge publish` from the package repo to claim ownership
—Ed25519 publish signature+0/5
→ Included automatically when the publisher runs `forge publish`
—Domain verification+0/5
→ Publisher: host /.well-known/forge.json on the package homepage with { "publisher": "<github-login>" }
—npm Trusted Publishing (Sigstore)+0/5
→ Publish from GitHub Actions with --provenance so the attestation binds this package to this repo
—npm maintainer match+0/5
→ Earned once your identity is verified above and that login is an npm maintainer of this package
✓CVE scan · clean+30/30
✓Static analysis · clean+20/20
Paste into Claude Code, Cursor, or any AI assistant to fix all gaps
StatusCommunity-indexed
PublisherUnverified
SignatureUnsigned
Domain—
Provenance—
Dependencies✓ 60 resolved+ · none vulnerable
Tool surface18 tools · none privileged
Security scan✓ Cleanv0.1.3 · 3mo agoHow well does this scan work?
EvalsNone
IndexedJun 13, 2026

Verification confirms publisher identity (repo ownership), not code safety. The security scan covers known CVEs and suspicious install scripts.

Tools

18 tools · none privileged
Statically extracted from the published packagev0.1.3 · 3mo ago

Read out of the source npm actually ships, at scan time. The package was never executed. Tools registered dynamically at runtime, or hidden inside bundled or minified code, can be missed — so this is a floor on the tool surface, not a complete census of it.

json_contract_promptNo description published

This tool published no description. Forge does not invent one.

contractNo description published

This tool published no description. Forge does not invent one.

inputNo description published

This tool published no description. Forge does not invent one.

contextNo description published

This tool published no description. Forge does not invent one.

edit_contract_promptNo description published

This tool published no description. Forge does not invent one.

currentJsonNo description published

This tool published no description. Forge does not invent one.

repair_contract_promptNo description published

This tool published no description. Forge does not invent one.

invalidJsonNo description published

This tool published no description. Forge does not invent one.

validationErrorsNo description published

This tool published no description. Forge does not invent one.

json-contractNo description published

This tool published no description. Forge does not invent one.

list_contractsNo description published

This tool published no description. Forge does not invent one.

read_contractNo description published

This tool published no description. Forge does not invent one.

get_json_contractNo description published

This tool published no description. Forge does not invent one.

get_edit_contractNo description published

This tool published no description. Forge does not invent one.

validate_jsonNo description published

This tool published no description. Forge does not invent one.

get_repair_contractNo description published

This tool published no description. Forge does not invent one.

statusNo description published

This tool published no description. Forge does not invent one.

reload_contractsNo description published

This tool published no description. Forge does not invent one.

0 of 18 tools published a description.

Tool names and descriptions are written by the publisher and shown verbatim as inert text. They are the strings an MCP client passes to a model, so Forge scans them for prompt-injection patterns — any finding appears with the security scan above. “Privileged” is a keyword match on the tool name, not an audit of what the tool does: a benign-sounding name can still do anything.

About

JSON Contracts is a local MCP contract server for natural-language-to-JSON workflows. It gives agents Git-controlled JSON contracts, rules, examples, and JSON Schema validation tools so any model can reliably convert natural-language requests into schema-valid JSON. The MCP server does not call an LLM provider. The MCP server does not need API keys. The MCP server does not use BAML, LangChain, Markdown, or a DSL. The MCP server does not use MCP sampling. The MCP server does not generate JSON by…

Keywords
mcp
Alternatives
Comparing tool surfaces…

Tools exposed

18 tools · none privileged · observed by static extraction. A tool surface is what one scan read on one day, not a live capability list.

Linked names open Forge’s index of every entry observed exposing that tool. Browse all indexed tools.

No dependency coverage

This package was last scanned before Forge began storing the resolved tree. The next scan will record it.