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costwright — agent budget analysis

Static worst-case token-budget analysis for LLM-agent workflows + signed budget certificates.

Connector by hernaninverso · GitHub account verified by the MCP Registry

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Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/hernaninverso-costwright-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Static worst-case token-budget analysis for LLM-agent workflows + signed budget certificates.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
3 read · 0 write · 0 delete · 1 not yet classified
Secrets
1 (API keys, tokens or passwords)
Install scripts
Not scanned yet
Runs as
Node.js package

Tools by what they do 4

Read from the source code; the running server may list different tools.

Read 3 · Look things up without changing anything.

  • costwright_check
  • costwright_pubkey
  • costwright_verify

Not yet classified 1 · We could not tell from the name and description.

  • costwright_certify

Secrets and settings it asks for

Secrets: values you paste in that let it act as you.

  • COSTWRIGHT_API_KEY

Tools (4)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • costwright_certify

    Issue a tamper-evident, Ed25519-signed budget certificate for an agent repo (re-run server-side, logged to a public transparency log). Same input as costwright_check plus an optional label. Returns the cert_id, the signed certificate and a verify_url. Use to produce an auditable proof of a workflow's worst-case spend ceiling.

  • costwright_check

    Statically analyze an LLM-agent repo (LangGraph / CrewAI / OpenAI-Agents-SDK) for runaway-budget risk WITHOUT running it. Builds a .py-only archive of the given local path and returns a worst-case budget summary: counts of certifiable / default_dependent / non_certifiable / runaway graph units and a pass|fail verdict. Use before deploying a workflow to catch missing token caps and while-True runaway drivers.

  • costwright_pubkey

    Fetch costwright's active Ed25519 public keys (PEM) for offline signature verification of any certificate (public, no key).

  • costwright_verify

    Verify a previously issued costwright certificate by id (public, no key). Returns its state (valid|expired|revoked|signature_invalid), whether the signature checks out, and the certified result.

Signals

Stars
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Forks
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Last commit
Jun 30, 2026 (4 months ago)
Last release
Jun 30, 2026 (4 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.hernaninverso/costwright-mcp
Version
0.1.1
Auth
API key
Packages
npm costwright-mcp
License
License unknown
Repository
github.com/hernaninverso/costwright-mcp
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registrygithub-graphql

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Cite this page

costwright — agent budget analysis MCP server. Agent Mart. https://agentmart.dev/connectors/hernaninverso-costwright-mcp (last updated 2026-10-24)