Hand-written lexer, recursive-descent parser, semantic analyzer, and Volcano-model executor implemented in Rust (anvil-cypher crate, ~20,000 lines across 12 source files).

Documentation covering all supported Cypher clauses: MATCH, CREATE, MERGE, SET, DELETE, WITH, UNWIND, UNION, ORDER BY, SKIP, LIMIT, FOREACH, OPTIONAL MATCH, and more.

Property graph implementation with nodes, relationships, labels, and property maps (anvil-core crate, ~14,700 lines).

2,321 tests verify Cypher parsing, pattern matching, aggregation, path traversal, and all query features.

Auto-generates GraphQL types from graph labels and relationship types, with Relay-spec connections for pagination (anvil-graphql crate, ~2,000 lines).

POST /graphql endpoint with introspection, filtering, nested traversals, and Cypher passthrough queries.

Marketing page describing GraphQL capabilities including auto-schema generation and real-time subscriptions.

MemDocumentStore with collections, composite keys, TTL, secondary indexes, and batch operations implemented in anvil-core (~14,700 lines).

Full CRUD REST API: GET/PUT/DELETE /docs/{collection}/{id}, POST /docs/{collection}/query for filtering, GET /docs/{collection}/scan for pagination.

CREATE DOCUMENT, MATCH DOCUMENT, UPSERT DOCUMENT, DELETE DOCUMENT clauses extend Cypher for document operations.

Collections are organized into schemas: public.* for application data and auth.* for system collections (users, roles, tokens). Names are reserved across schemas to prevent conflicts.

CREATE DOCUMENT IN collection key { fields }, MATCH DOCUMENT d IN collection WHERE ..., UPSERT DOCUMENT, DELETE DOCUMENT — native document CRUD inside Cypher queries.

CREATE FUNCTION with typed parameters (STRING, INT, FLOAT, BOOL, LIST, MAP, ANY, VOID), return types, MUTATING keyword, and CALL...YIELD invocation.

CREATE TRIGGER with BEFORE/AFTER timing, INSERT/UPDATE/DELETE events, OLD/NEW pseudo-variables, PRIORITY ordering, and RAISE for abort.

CREATE POLICY with USING predicates, FOR SELECT/INSERT/UPDATE/DELETE/ALL, permissive and restrictive modes, session variables for multi-tenancy.

SYNC LABEL ... TO COLLECTION with KEY, INCLUDE, SKIP TRIGGERS. Bidirectional, graph-to-document, or document-to-graph directions with conflict resolution.

Complete documentation covering all Anvil Cypher extensions organized into 16 subsections.

Page-based storage engine with write-ahead logging (WAL), ARIES-style crash recovery, B+ tree indexes, and MVCC implementation (anvil-storage crate, ~16,700 lines).

Multi-version concurrency control with version chains, three isolation levels (read committed, repeatable read, serializable), record-level locking with intent locks, and deadlock detection via wait-for graph.

Write-ahead log with CRC32 checksums, checkpoint records, and ARIES-protocol redo/undo phases for crash recovery (anvil-storage crate, 52 source files).

All 13 workspace crates listed with source files, lines of code, test ratios, modules, and dependencies: core, storage, cypher, graphql, server, cli, algorithms, client, cluster, migration, plugin-sdk, apoc, benches.

Detailed breakdown of each crate: source files, lines of code, test ratio, public modules, and internal dependencies.

Features page describing the modular architecture and separation of concerns across workspace crates.

Interactive browser listing all 2,321 tests organized by module, with search and filter capabilities.

Run 'cargo test --workspace -- --list' to enumerate all tests. Run 'cargo test --workspace' to execute the full suite.

Per-crate breakdown showing test line counts. Total: 88,229 lines of Rust, 29,299 lines (37%) are test code inside #[cfg(test)] blocks.

103-assertion integration test script (scripts/test-cypher.sh) that verifies Cypher queries, aggregation, relationships, document operations, and more against a running Anvil instance.

anvil-apoc crate implementing 53 functions across bitwise, collections, conversion, date/time, import/export, math, graph refactoring, spatial/geospatial, and text similarity modules (~1,686 lines).

Complete listing of every APOC function with module, signature, and description — generated directly from source code doc comments.

Monorepo containing all four drivers with URI parsing (anvil:// and anvil+tls://), JWT auth with auto-refresh, Cypher queries, transactions, GraphQL, and document operations.

Quick Start guide showing connection examples in all four languages with the anvilent package.

React Router 7, React 19, TypeScript, Tailwind CSS 4. MIT licensed. Includes Cypher editor, GraphQL playground, graph visualization (D3.js), document manager, admin panel, and more.

Quick Start guide for installing and deploying Hammer UI, including npm setup, production build, and Docker.

Hosted Hammer UI instance connected to a live Anvil DB server.

anvil-algorithms crate with modules: centrality (PageRank, betweenness, closeness, degree), community (Louvain, label propagation), path (Dijkstra, A*, BFS, DFS), similarity, traversal (~2,198 lines).

Description of all built-in algorithms executed natively on the storage engine.

tls_cert and tls_key settings in [server] section of anvil.toml, or ANVIL_TLS_CERT and ANVIL_TLS_KEY environment variables.

axum-server with tls-rustls feature in workspace dependencies. Server conditionally binds with TLS when cert/key paths are configured.

Cargo.toml specifies edition = "2024", rust-version = "1.85". All crates inherit workspace settings.

88,229 lines of Rust across 175 source files in 13 crates. No runtime dependencies on external databases or VMs.