GetSupergraphSchema
shallowio.github.apollographql/graphos-mcp-server · Verify this server
Read the composed supergraph schema (SDL) for a graph variant, with the composition ID and any composition errors. This is the same read that `rover supergraph fetch` performs. A supergraph schema is the single schema that composition builds from every subgraph, and it carries federation directives that the API schema does not. The response holds the whole document and is not truncated, and a supergraph schema is larger than the API schema it produces. Expect the same order of size: a large federated graph exceeds 800,000 characters, roughly 200,000 tokens. A variant that is not federated has no composition result, and the tool returns null for it rather than an empty document. Provide the graph ID and the variant name.
1 trials · measured 4 days ago
GetSupergraphSchema scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against io.github.apollographql/graphos-mcp-server, measured 18 Oct 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-18 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
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