Trust score
40/100
MarketNow Registry / Developer Tools / tool-use-firewall
tool-use-firewall
Policy enforcement proxy between agents and MCP tools. Cost caps, rate limits, argument validation, human-in-the-loop approval for destructive ops, read-only mode, and full audit logging. MCP-native.
Developer Tools
v1.0.0
by reaatech
Install risk
Runs registry code
Source
github
Indexed
2026-09-10
Install
$ npx -y tool-use-firewallInstalling via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
How MarketNow scored this
Sentinel Index Heuristics — a security-first estimate from public signals:
- Package age and release activity (stale repositories lose points)
- Verified adoption: registry downloads or GitHub stars, not follower counts
- Typosquat distance against the 150 most-installed MCP packages
- Injection markers scanned in the package description
Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.
What is tool-use-firewall?
Policy enforcement proxy between agents and MCP tools. Cost caps, rate limits, argument validation, human-in-the-loop approval for destructive ops, read-only mode, and full audit logging. MCP-native. Indexed by MarketNow with trust 40/100 (Runs registry code).
How do I install it?
Run $ npx -y tool-use-firewall Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
What does the trust score mean?
Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. tool-use-firewall scores 40/100.