MarketNow Registry / Security / Sentinel

Sentinel

Provenance-aware security proxy for AI agents — block prompt-injection actions at the MCP tool boundary, with no agent code changes.

Security v0.0.0 by Harshith029

Trust score

90/100

Install risk

Review advised

GitHub stars

Source

github

Indexed

2026-09-10

Install

$ git clone https://github.com/Harshith029/Sentinel

Heuristic signals advise review before installing: young package, low adoption, stale repository, or name similarity to a popular package.

Adoption evidence: 2 GitHub stars.

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 Sentinel?

Provenance-aware security proxy for AI agents — block prompt-injection actions at the MCP tool boundary, with no agent code changes. Indexed by MarketNow with trust 90/100 (Review advised).

How do I install it?

Run $ git clone https://github.com/Harshith029/Sentinel Heuristic signals advise review before installing: young package, low adoption, stale repository, or name similarity to a popular package.

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. Sentinel scores 90/100.