# io.github.meltingpixelsai/zero-core-budget

> Agent spending mgmt, budget tracking, ROI. Zero Core Budget.

- name: io.github.meltingpixelsai/zero-core-budget
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 90/100
- quality: 71/100 (needs work)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.meltingpixelsai%2Fzero-core-budget
- tools: https://api.protogrid.dev/v1/servers/io.github.meltingpixelsai%2Fzero-core-budget/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "zero-core-budget": {
      "type": "http",
      "url": "https://budget.rugslayer.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 65
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% ~updated-173d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 71/100 (needs work)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: register_agent (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); report_spend (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_spending_report (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 1,077 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: 33 (weight 15)

- fail `deps.known_vulns`: 3 advisories to act on (malicious, or rated high or critical with a fix available): GHSA-w2fm-25vw-vh7f in mcp-handler@1.0.2 (indirect, fixed in 1.1.0), GHSA-96hv-2xvq-fx4p in ws@8.18.0 (indirect, fixed in 8.21.0), GHSA-96hv-2xvq-fx4p in ws@8.18.3 (indirect, fixed in 8.21.0); 5 more of lower severity or without a fix
- fail `deps.mcp_sdk_version`: @modelcontextprotocol/sdk 1.18.2 has 4 known advisories (GHSA-345p-7cg4-v4c7, GHSA-6qxp-vccf-f47h, GHSA-8r9q-7v3j-jr4g, ...); update @modelcontextprotocol/sdk to 1.31.0 or later
- pass `deps.resolvable`: @meltingpixels/zero-core-budget@1.0.0 resolved: 639 packages

- tools: 6, about 1,077 tokens to load them all
- tool set hash: 1d0fb3fa1593e116730660d64d1867bf
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.meltingpixelsai/zero-core-budget.svg)](https://protogrid.dev/servers/io.github.meltingpixelsai/zero-core-budget)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- npm @meltingpixels/zero-core-budget@1.0.0: resolved, 638 dependencies, MCP SDK @modelcontextprotocol/sdk 1.30.1
  - GHSA-345p-7cg4-v4c7 (high) in `` @modelcontextprotocol/sdk@1.18.2 ``, indirect, fixed in `` 1.26.0 ``, advisory summary: "@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse" https://osv.dev/vulnerability/GHSA-345p-7cg4-v4c7
  - GHSA-6qxp-vccf-f47h (high) in `` @modelcontextprotocol/sdk@1.18.2 ``, indirect, fixed in `` 1.31.0 ``, advisory summary: "MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server" https://osv.dev/vulnerability/GHSA-6qxp-vccf-f47h
  - GHSA-6qxp-vccf-f47h (high) in `` @modelcontextprotocol/sdk@1.30.1 ``, direct, fixed in `` 1.31.0 ``, advisory summary: "MCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server" https://osv.dev/vulnerability/GHSA-6qxp-vccf-f47h
  - GHSA-8r9q-7v3j-jr4g (high) in `` @modelcontextprotocol/sdk@1.18.2 ``, indirect, fixed in `` 1.25.2 ``, advisory summary: "Anthropic's MCP TypeScript SDK has a ReDoS vulnerability" https://osv.dev/vulnerability/GHSA-8r9q-7v3j-jr4g
  - GHSA-w48q-cv73-mx4w (high) in `` @modelcontextprotocol/sdk@1.18.2 ``, indirect, fixed in `` 1.24.0 ``, advisory summary: "Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default" https://osv.dev/vulnerability/GHSA-w48q-cv73-mx4w
  - GHSA-w2fm-25vw-vh7f (high) in `` mcp-handler@1.0.2 ``, indirect, fixed in `` 1.1.0 ``, advisory summary: "mcp-handler has a tool response leak across concurrent client sessions ('Race Condition')" https://osv.dev/vulnerability/GHSA-w2fm-25vw-vh7f
  - GHSA-96hv-2xvq-fx4p (high) in `` ws@8.18.0 ``, indirect, fixed in `` 8.21.0 ``, advisory summary: "ws: Memory exhaustion DoS from tiny fragments and data chunks" https://osv.dev/vulnerability/GHSA-96hv-2xvq-fx4p
  - GHSA-96hv-2xvq-fx4p (high) in `` ws@8.18.3 ``, indirect, fixed in `` 8.21.0 ``, advisory summary: "ws: Memory exhaustion DoS from tiny fragments and data chunks" https://osv.dev/vulnerability/GHSA-96hv-2xvq-fx4p
  - GHSA-vcc3-ghjq-m6fr (moderate) in `` decode-uri-component@0.2.2 ``, indirect, fixed in `` 0.5.0 ``, advisory summary: "decode-uri-component: Denial of service via exponential decoding of malformed percent-encoded input" https://osv.dev/vulnerability/GHSA-vcc3-ghjq-m6fr
  - GHSA-w5hq-g745-h8pq (moderate) in `` uuid@8.3.2 ``, indirect, fixed in `` 11.1.1 ``, advisory summary: "uuid: Missing buffer bounds check in v3/v5/v6 when buf is provided" https://osv.dev/vulnerability/GHSA-w5hq-g745-h8pq
  - GHSA-w5hq-g745-h8pq (moderate) in `` uuid@9.0.1 ``, indirect, fixed in `` 11.1.1 ``, advisory summary: "uuid: Missing buffer bounds check in v3/v5/v6 when buf is provided" https://osv.dev/vulnerability/GHSA-w5hq-g745-h8pq
  - GHSA-58qx-3vcg-4xpx (moderate) in `` ws@8.18.0 ``, indirect, fixed in `` 8.20.1 ``, advisory summary: "ws: Uninitialized memory disclosure" https://osv.dev/vulnerability/GHSA-58qx-3vcg-4xpx
  - GHSA-58qx-3vcg-4xpx (moderate) in `` ws@8.18.3 ``, indirect, fixed in `` 8.20.1 ``, advisory summary: "ws: Uninitialized memory disclosure" https://osv.dev/vulnerability/GHSA-58qx-3vcg-4xpx

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://budget.rugslayer.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

- npm @meltingpixels/zero-core-budget@1.0.0

## Tools (6)

- `check_spend`: Pre-spend budget approval check. Verifies daily/weekly/category limits, estimates ROI from historical data, and suggests cheaper alternatives. Call this BEFORE paying for any service.
- `get_spending_report`: Detailed spending analytics report. Returns total spent, category breakdown, top services with ROI, and optimization recommendations. Use to understand spending patterns and find inefficiencies.
- `health`: Check Harvey Budget server status, uptime, and payment network configuration.
- `list_tools`: List all available Harvey Budget tools with pricing and input requirements. Use this for discovery.
- `register_agent`: Register an agent with daily and weekly budget limits. Free tool - call this before using check_spend or report_spend. Upserts if agent already exists.
- `report_spend`: Record a completed spend with optional outcome tracking. Call this AFTER paying for a service to track spending and build ROI history.