Tool-result size governor for MCP

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

Per-route output budgets for MCP: windowing, spill artifacts, signed omission receipts.

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

VerifiedStreamable HTTPWeb executableDeveloper Tools AI & ML

Server details

Identifier: com.textforagents/tool-result-size-governor
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Oct 21, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified that this server's namespace belongs to textforagents.com, which also runs its endpoint. That identifies the publisher; it does not make the server's tools safe.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

AI-generated overview

Remote MCP server that caps tool results to per-route output budgets, spilling the rest to artifacts and issuing signed omission receipts.

What you can do: Shape a tool result under per-route budgets, returning a shaped window plus a signed omission receipt
Re-fetch a narrower, byte-exact slice of a spilled payload with checksum re-verification
Verify a signed omission receipt
Report an unknown artifact as a clean error
When to use it: Useful when large tool outputs overflow context or token budgets and you want a bounded window plus an auditable record of what was omitted, with the option to pull back specific slices later.
Requirements: A remote streamable HTTP endpoint; no packages, environment variables or headers declared. After the free trial, continued use requires a payment header (X-PAYMENT) or a plan.

Before you install

Paid beyond the first 100 shaped results per operator, at $0.001 per result via the X-PAYMENT header or a plan. Tool results are sent to a third-party service for shaping and spill storage, so avoid passing sensitive payloads.

Installation

In SourceWeft

Open Tool-result size governor for MCP in the dashboard and add it to a workspace.
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%2Ftool-result-size-governor/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": {
    "tool-result-size-governor-for": {
      "type": "http",
      "url": "https://textforagents.com/products/tool-result-size-governor/mcp"
    }
  }
}

Tools

shape_result

Shape one tool result under your per-route budgets -> shaped window + signed omission receipt. Trial: first 100 shaped results free once per operator; then $0.001/result (X-PAYMENT header) or a plan.

Parametersargstextrouterequiredresulttool_argsfixture_tool

fetch_slice

Re-fetch a narrower slice of your own spilled payload, byte-exact, checksum re-verified. unknown_artifact is a clean error.

Parameterslimitoffsetartifact_idrequired

verify_receipt

Verify a signed omission receipt.

Parametersreceiptrequired

Version history

v1.0.1LatestOct 29, 2026
v1.0.0Oct 21, 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.