Home / bytedance / deer-flow · GitHub

AGENTS.md@backend/packages/harness/deerflow/persistenceA

AGENTS.md@backend/packages/harness/deerflow/persistence from bytedance/deer-flow is an AGENTS.md file: the standing instructions coding agents read in that repo.

Install it, pinned

mdr add bytedance/deer-flow/backend/packages/harness/deerflow/persistence/AGENTS.md@git:20261102.21175ba

Pins git:20261102.21175ba in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 14 of 14 checks passed
Kind: AGENTS.md file
Repository: bytedance/deer-flow
Path: backend/packages/harness/deerflow/persistence/AGENTS.md
Versions recorded: 21
Latest version: git:20261102.21175ba, committed Nov 2, 2026
First version recorded: Sep 20, 2026
Size: 14,808 bytes
Repository stars: 85,141
License: MIT

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

# Persistence lifecycle

`postgres_url.normalize_asyncpg_url` maps libpq `sslmode` to asyncpg `ssl`,
preserving modes and credentials. Reject conflicting/repeated SSL options and
unsupported `channel_binding`; never silently drop authentication requirements.
`DatabaseConfig.app_sqlalchemy_url` and test fixtures share it; synchronous
psycopg/checkpointer DSNs retain their libpq options.

Postgres bootstrap owns its session-scoped advisory lock until `pg_advisory_unlock` completes. Drain that unlock across host cancellation before leaving the SQLAlchemy connection context; repeated cancellation must not return a pooled session while it still holds the bootstrap mutex. Ordinary database errors remain best-effort and are logged.

Acquire that lock by polling `pg_try_advisory_lock`, never with a blocking `pg_advisory_lock`: the app engine's asyncpg `command_timeout` bounds every statement, so a blocking acquire fails a second instance's startup whenever a peer's migration outlasts it.

`init_engine` auto-creates a Postgres database only on SQLSTATE `3D000`. Missing relations, columns and roles also "do not exist"; a `CREATE DATABASE` retry would mask them.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add bytedance/deer-flow/backend/packages/harness/deerflow/persistence/AGENTS.md@sha256:f6ee75dec5e9d5ad

The line at the top of this page pins the label git:20261102.21175ba, 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_4p53yu7kzbfxfvrx.svg)](https://markdownregistry.com/a/art_4p53yu7kzbfxfvrx)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 21 versions of this file, between Sep 20, 2026 and Nov 2, 2026, about one every 2 days.

version	committed	commit	size	audit
git:20261102.21175ba latest	2026-11-02	21175ba	14,808 B	A	view · diff
git:20261031.3027ab6	2026-10-31	3027ab6	13,772 B	A	view · diff
git:20261030.882433a	2026-10-30	882433a	13,378 B	A	view · diff
git:20261024.6dc28f5	2026-10-24	6dc28f5	12,969 B	A	view · diff
git:20261024.d2e2d57	2026-10-24	d2e2d57	12,794 B	A	view · diff
git:20261023.cfe2bec	2026-10-23	cfe2bec	12,360 B	A	view · diff
git:20261022.9e08568	2026-10-22	9e08568	11,638 B	A	view · diff
git:20261021.c04946a	2026-10-21	c04946a	11,073 B	A	view · diff
git:20261019.850b3b2	2026-10-19	850b3b2	10,410 B	A	view · diff
git:20261018.75de356	2026-10-18	75de356	7,951 B	A	view · diff
git:20261017.f34e1a8	2026-10-17	f34e1a8	7,503 B	A	view · diff
git:20261014.4e9f6c6	2026-10-14	4e9f6c6	6,405 B	A	view · diff
git:20261008.c58d04b	2026-10-08	c58d04b	5,807 B	A	view · diff
git:20261007.97b26b0	2026-10-07	97b26b0	5,370 B	A	view · diff
git:20261007.35cdcab	2026-10-07	35cdcab	4,781 B	A	view · diff
git:20261006.2dd2e54	2026-10-06	2dd2e54	3,090 B	A	view · diff
git:20261005.7f2c0fb	2026-10-05	7f2c0fb	1,749 B	A	view · diff
git:20261005.52046aa	2026-10-05	52046aa	1,489 B	A	view · diff
git:20260922.36b124c	2026-09-22	36b124c	1,007 B	A	view · diff
git:20260922.0627de2	2026-09-22	0627de2	644 B	A	view · diff
git:20260920.e545c28	2026-09-20	e545c28	370 B	A	view

Audit of the latest version

A 14 of 14 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Size between 200 bytes and 200 KB (14808 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

bytedance/deer-flow · 85,141 stars · license MIT · pushed 2026-11-08 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4p53yu7kzbfxfvrx
GET https://markdownregistry.com/api/v1/resolve?ref=bytedance/deer-flow/backend/packages/harness/deerflow/persistence/AGENTS.md
GET https://markdownregistry.com/api/v1/blob/f6ee75dec5e9d5ad5fdd4cacdc2c4c1e078ce6418643d070102af46be9f1d9d6

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: how to write a good AGENTS.md · AGENTS.md vs CLAUDE.md · which agent file does what.

More from bytedance/deer-flow

blocking-io-guard SKILL.md skill

bytedance/deer-flow · .agent/skills/blocking-io-guard/SKILL.md · Ensure async-path backend code that could block the asyncio event loop is protected by a teeth-verified runtime anchor…

git:20260612.dc2abab · audit A · 85,141 stars

deerflow-maintainer-orchestrator SKILL.md skill

bytedance/deer-flow · .agent/skills/deerflow-maintainer-orchestrator/SKILL.md · Use when a DeerFlow maintainer needs comment-only GitHub issue or PR handling: resolve issue/PR scopes with gh, analyze…

git:20260616.65fab1d · audit A · 85,141 stars

engineer-system-change SKILL.md skill

bytedance/deer-flow · .agent/skills/engineer-system-change/SKILL.md · Evaluate and carry out non-trivial software-system changes from first principles. Use when assessing RFCs, issues…

git:20260723.2af2fb5 · audit A · 85,141 stars

smoke-test SKILL.md skill

bytedance/deer-flow · .agent/skills/smoke-test/SKILL.md · End-to-end smoke test skill for DeerFlow. Guides through: 1) Pulling latest code, 2) Docker OR Local installation and…

git:20260619.525ec0a · audit A · 85,141 stars

AGENTS.md AGENTS.md file

bytedance/deer-flow · AGENTS.md

git:20261029.6ca83a3 · audit A · 85,141 stars

CLAUDE.md CLAUDE.md file

bytedance/deer-flow · CLAUDE.md

git:20260625.ff7ecdb · audit B · 85,141 stars

AGENTS.md@backend AGENTS.md file

bytedance/deer-flow · backend/AGENTS.md

git:20261104.4c4a4e9 · audit A · 85,141 stars

CLAUDE.md@backend CLAUDE.md file

bytedance/deer-flow · backend/CLAUDE.md