codex-provider-sync is a utility that synchronizes the provider metadata stored in Codex session files and its SQLite index. It is used after changing model providers so previously saved sessions become visible again, with CLI, local web, and Windows GUI interfaces and backups before writing.
Borrowing it
Nothing to install: this file belongs to Dailin521/codex-provider-sync. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Dailin521/codex-provider-sync/main/AGENTS.mdgit clone --depth 1 https://github.com/Dailin521/codex-provider-syncWrote 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.
[](https://agentmods.dev/instructions/dailin521/codex-provider-sync/agents-md)<a href="https://agentmods.dev/instructions/dailin521/codex-provider-sync/agents-md"><img src="https://agentmods.dev/badge/instructions/dailin521/codex-provider-sync/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.
<a href="https://agentmods.dev/instructions/dailin521/codex-provider-sync/agents-md"><img src="https://agentmods.dev/badge/instructions/dailin521/codex-provider-sync/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.02791 | $0.02791 |
| Opus 5.5 | $0.01116 | $0.01116 |
| Sonnet 5.5 | $0.00558 | $0.00558 |
| Haiku 4.5 | $0.00279 | $0.00279 |
Grade A, and why
codex-provider-sync 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AI / Agent Operator Guide
This file is for AI assistants and automation working in this repository. User-facing setup and usage belong in README.md and docs/.
vNext architecture baseline
Read Current Node Core architecture and invariants first for V1 development, then the vNext Electron + Node architecture for the overall target and staged migration. The current guide maps real modules, the CLI compatibility exception, and Provider I/O invariants PIO-1 through PIO-6.
The current Core guide maps the V1 implementation and accepted invariants; the larger vNext baseline also contains target-state and historical migration sections. Do not treat a target as shipped evidence or a superseded contract as the current behavior. Do not delete the .NET implementation, break the CLI/Web contract, or perform a big-bang rewrite ahead of those gates.
Phase 0 decisions and frozen behavior are indexed in the vNext migration execution index. Before changing an external behavior, read the applicable Core behavior contract, CLI contract, error-code contract, and behavior fixture catalog, plus the Accepted ADRs in docs/adr/.
An external behavior change must update its contract and add or update a fixture/test in the same PR. Target-state text is not proof that a feature exists: keep current behavior, transitional adapter behavior, and the vNext target explicitly separated.
Goal
Help reuse Codex sessions affected by model_provider metadata mismatches by keeping rollout metadata and the resolved SQLite thread index aligned. This does not guarantee cross-provider continuation or compaction. Do not treat this as an authentication or account-management tool.
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.
- 8d ago Changed · +3 lines · +180 tokens per session dfd9f41005a0
- 1mo ago Changed · +9 lines · +168 tokens per session c3d11f787a87
- 1mo ago Changed · +12 lines · +441 tokens per session e0dc7ec3a8a6
- 1mo ago Changed · +9 lines · +522 tokens per session 38378a488531
- 2mo ago First seen · 87 lines · 1,480 tokens per session scan A e2d1e8cb6130
codex-provider-sync AGENTS.md is an instructions file published in the GitHub repository Dailin521/codex-provider-sync (3,635 stars, last pushed 9d ago), licensed MIT. It adds 2,791 tokens to every session, about $0.0112 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.
codex-provider-sync AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| codex-provider-sync AGENTS.mdDailin521/codex-provider-sync | Instructions file | 3.6k | 9d ago | MIT | A | 2,791 | Codex, OpenCode |
| plan-forge naming.instructions.mdsrnichols/plan-forge | Instructions file | 6 | 2d ago | MIT | A | 1,453 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | 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 |