What is vespertide AGENTS.md?

Project-specific instructions and reference notes for Vespertide, a Rust workspace for defining database schemas and generating database changes and code. A Rust workspace is a project containing multiple related Rust packages.

Use it when changing Vespertide's schema tools, command-line interface, SQL generation, code generation, file loading, or language-server code.

It gives a coding agent the project structure, data flow, and conventions it needs to work consistently in that codebase.

How dev-five-git/vespertide configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to dev-five-git/vespertide. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/dev-five-git/vespertide/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/dev-five-git/vespertide

Made for: Codex, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/dev-five-git/vespertide/agents-md/github.svg)](https://agentmods.dev/instructions/dev-five-git/vespertide/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/dev-five-git/vespertide/agents-md"><img src="https://agentmods.dev/badge/instructions/dev-five-git/vespertide/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/dev-five-git/vespertide/agents-md"><img src="https://agentmods.dev/badge/instructions/dev-five-git/vespertide/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 11,060 This file is loaded in full into every session.

When invoked 11,060 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.11060	$0.11060
Opus 5.5	$0.04424	$0.04424
Sonnet 5.5	$0.02212	$0.02212
Haiku 4.5	$0.01106	$0.01106

Measured 1mo ago against content hash 268cb2338fc9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vespertide AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

AGENTS.md · 645 lines

How it starts

The opening of the file, as written. The whole thing — 645 lines — stays where its author put it; the contents beside it link to each section on GitHub.

VESPERTIDE KNOWLEDGE BASE

Generated: 2026-05-24 Commit: 9103bb3 Branch: refactor Targeting: 0.2.0 (API stability + LSP hot-spot caching)

OVERVIEW

Rust workspace for declarative database schema management. Define schemas in JSON, diff against migration history, generate typed actions and SQL.

STRUCTURE

vespertide/
├── crates/
│   ├── vespertide-core/      # Data structures: TableDef, ColumnDef, MigrationAction; newtype names
│   ├── vespertide-planner/   # Schema diffing, baseline reconstruction, validation
│   ├── vespertide-query/     # SQL generation (Postgres/MySQL/SQLite)
│   ├── vespertide-cli/       # CLI commands: init, diff, sql, revision, export
│   ├── vespertide-exporter/  # ORM codegen: SeaORM, SQLAlchemy, SQLModel, JPA, Prisma, Drizzle, GORM, Django
│   ├── vespertide-loader/    # Filesystem loading of models/migrations
│   ├── vespertide-config/    # vespertide.json configuration
│   ├── vespertide-lsp/       # Language server: 13 LSP capabilities + HS-7~11 caching
│   ├── vespertide-macro/     # Compile-time migration macro
│   ├── vespertide-naming/    # Naming convention utilities
│   ├── vespertide-schema-gen/# JSON Schema generation
│   └── vespertide/           # Re-export crate (user-facing API)
├── bridge/node/              # N-API bridge: the CLI as the `vespertide` npm package (+ @vespertide/cli-* platform packages)
├── examples/app/             # Example project with models/migrations (out-of-workspace)
├── tools/lsp-profile/        # LSP synthetic / realistic workload + latency profiler (out-of-workspace)
├── fuzz/                     # cargo-fuzz targets (4 targets, see FUZZING section)
├── tests/runtime-sqlite/     # vespertide-macro runtime SQLite tests (out-of-workspace)
├── schemas/                  # Generated JSON Schemas for IDE support
├── docs/                     # profiling.md, profiling-baseline.json, clippy-allow-audit.md
└── CLAUDE.md                 # Detailed implementation guidance

WHERE TO LOOK

Read the full file on GitHub · 645 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed · +38 tokens per session 268cb2338fc9
1mo ago Changed · +11 lines · +239 tokens per session 39bbd2818b63
2mo ago Changed · +28 lines · +311 tokens per session 711e5eba411b
2mo ago First seen · 606 lines · 10,472 tokens per session scan A ecaf6b4f7ec8

Subscribe to this mod's changes

vespertide AGENTS.md is an instructions file published in the GitHub repository dev-five-git/vespertide (23 stars, last pushed 23d ago), licensed Apache-2.0. It adds 11,060 tokens to every session, about $0.0442 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Databases Languages Rust

vespertide AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
vespertide AGENTS.mddev-five-git/vespertide	Instructions file	23	23d ago	Apache-2.0	A	11,060	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

vespertide: Instructions file for Codex