Sandbox-truth probe for agent frameworks

com.textforagentsPublished by textforagents.comOfficial publisherv1.0.1Updated Oct 29, 2026

Measured sandbox verdicts: 7-axis probe, signed pinned receipt. Cached $0.25, fresh $2.50.

The publisher's own server: Agent NOTAMs: hazard bulletins for agents

VerifiedStreamable HTTPWeb executableSecurity & MonitoringAI & ML

Overview

AI-generated overview

Remote MCP endpoint that returns measured, signed sandbox verdicts for agent frameworks, with cached and fresh probe results.

What you can do
  • List probeable sandbox fixtures and their real-population status
  • Look up whether a cached verdict exists for a framework, with paid delivery over x402
  • Verify a signed receipt against the pinned signer key
  • Evaluate a dispatch gate covering pin, dead-flag, stale-hash, freshness and framework refusal
  • Show your watch subscriptions and their current cached verdicts
When to use it
Useful when you need an independent, receipt-backed check of how an agent framework behaves in a sandbox before dispatching work to it, or when you want to gate dispatch on freshness and refusal rules.
Requirements
A remote streamable HTTP endpoint; no packages, environment variables or headers are declared. Paid delivery of cached verdicts runs over x402 on the HTTP surface, so a payment-capable client is implied.
Before you install
Verdicts are paid: cached results are listed at $0.25 and fresh ones at $2.50, so lookups can spend money. Receipts should be checked against the pinned signer key before being trusted. The gate is described as a fail-closed allowlist, so refusals may block dispatch.

Installation

In SourceWeft

  1. Open Sandbox-truth probe for agent frameworks in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.textforagents%2Fsandbox-truth-probe/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "sandbox-truth-probe-for-agent-frameworks": {
      "type": "http",
      "url": "https://textforagents.com/products/sandbox-truth-probe/mcp"
    }
  }
}

Tools

5

sandbox_frameworks

List probeable fixtures and the real-population status.

Takes no parameters.

sandbox_cached_verdict

Look up whether a cached verdict exists (delivery is paid over x402 on the HTTP surface).

Parametersframeworkrequired

sandbox_verify_receipt

Verify a receipt against the pinned signer key.

Parametersreceiptrequired

sandbox_gate

Dispatch-gate evaluation: pin, DEAD-FLAG, stale-hash, freshness and framework refusal (fail-closed allowlist).

Parametersreceiptrequiredmax_age_secondsexpected_frameworkexpected_source_hash

sandbox_watch_status

Your watch subscriptions and current cached verdicts.

Takes no parameters.

Version history

2
  1. v1.0.1LatestOct 29, 2026
  2. v1.0.0Oct 23, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.

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