subgraph-development-guide SKILL.md skillA
subgraph-development-guide from nirholas/three.ws is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nirholas/three.ws/subgraph-development-guide@git:20260501.87cefc9Pins git:20260501.87cefc9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nirholas/three.ws
- Path
data/skills/development/subgraph-development-guide/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260501.87cefc9, committed May 1, 2026
- Size
- 8,783 bytes
- Repository stars
- 269
- License
- Apache-2.0
Guide to building blockchain data indexes with The Graph — subgraph architecture, schema design, mapping handlers, deployment, and querying. Covers GraphQL APIs for DEX data, token transfers, and DeFi protocol events. Use when explaining blockchain indexing or building custom data pipelines.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Subgraph Development Guide
The Graph is the indexing protocol for blockchain data. Subgraphs turn raw blockchain events into queryable GraphQL APIs. This guide covers how they work and how to build them.
## Why Subgraphs?
### The Problem
Reading blockchain data directly is painful:
- RPC calls are slow and sequential
- No aggregation (can't query "total volume last 7 days")
- No relationships (can't join swaps with token metadata)
- Rate limits on public RPCs
### The Solution
Subgraphs listen to blockchain events, process them, and store structured data:
```
Blockchain Events → Subgraph Indexer → GraphQL API
(Swap, Transfer, (Processes, (Fast queries,
Mint, Burn) aggregates) relationships)
```
## Architecture
```
┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
│ 1. Schema │ │ 2. Mappings │ │ 3. Manifest │
│ (GraphQL types) │ │ (Event handlers)│ │ (subgraph.yaml) │
│ │ │ │ │ │
│ type Token { │ │ handleSwap(e) { │ │ dataSources: │
│ id: ID! │ │ // process │ │ - name: Pool │
…Read the whole file at its exact version.
How to install
mdr add nirholas/three.ws/subgraph-development-guide@sha256:44083c971082fa98The line at the top of this page pins the label git:20260501.87cefc9, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_fxkp4y3ze4d4agyk)
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Versions
The registry has recorded 1 version of this file, committed on May 1, 2026.
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Source
nirholas/three.ws · 269 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fxkp4y3ze4d4agyk GET https://markdownregistry.com/api/v1/resolve?ref=nirholas/three.ws/subgraph-development-guide GET https://markdownregistry.com/api/v1/blob/44083c971082fa98bb11bd52c441aa3024003f66ffcc64847bc033f131baa163
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