Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/5uck1ess/devkit/agents-mdgit clone --depth 1 https://github.com/5uck1ess/devkitWhat 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 | $0.00581 | $0.00581 |
| Opus 5 | $0.00291 | $0.00291 |
| Sonnet 5 | $0.00116 | $0.00116 |
| Haiku 4.5 | $0.00058 | $0.00058 |
Grade A, and why
devkit 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 yesterday.
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 — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Devkit For Codex
devkit is a deterministic workflow engine. In this repo, treat the YAML workflow and MCP state as the source of truth: start a workflow, execute only the current step, report the step result, then advance.
Workflow Discipline
- Use
devkit_startto begin a workflow anddevkit_advanceto move to the next step. - Do not skip, reorder, or merge workflow steps unless the engine returns a branch/loop transition that does so.
- For command steps, do not run the command yourself. Call
devkit_advance; the engine owns command execution. - For prompt steps, do the requested work, summarize the result as the step output, then call
devkit_advance. - For loop steps, keep the iteration small and use
.devkit/scratchpads/current.mdwhen the step asks for it. - If an active workflow exists, finish or explicitly stop it before starting a different workflow.
Tool Mapping
- Claude
Bashmaps to Codex shell execution. - Claude
Read,Grep, andGlobmap to shell reads,rg, and file inspection. - Claude
EditandWritemap toapply_patchfor manual edits. - Claude
AgentandTaskmap to Codex subagents when the current environment exposes them; otherwise use external CLI runners or stop and report that model-diverse dispatch is unavailable. - Claude
WebFetchandWebSearchmap to Codex web tools only when browsing is available and allowed.
Enforcement Notes
Claude Code installs lifecycle hooks from hooks/hooks.json and can hard-block out-of-step tools. Codex-specific lifecycle hooks, prompt bridges, and config are planned for the separate devkit-codex adapter, which points Codex at this repo's MCP engine once released. Follow the same workflow policy voluntarily here, and rely on Codex sandbox/approval boundaries plus the MCP engine for stateful workflow control.
Hard guarantees that still hold under Codex:
- The MCP engine controls step order.
- Command steps execute inside the engine.
- Session state, branches, loops, gates, and reports remain engine-owned.
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.
- yesterday First seen · 44 lines · 581 tokens per session scan A eafc290fb685
devkit AGENTS.md is an instructions file published in the GitHub repository 5uck1ess/devkit (5 stars, last pushed 13d ago), licensed MIT. It adds 581 tokens to every session, about $0.0029 per session on Opus 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 2026-08-31.
Other instructions, from other repositories
Exolvra-Genesis CLAUDE.md
Claude Code instructions for Evolvlabsai/Exolvra-Genesis, covering claude.md, what this repository is, commands, architecture and versioning.
spectra CLAUDE.md
Instructions for leocder07/spectra, covering claude.md, what is spectra?, development commands, install dependencies and run cli.
ClaudeCode_GodMode-On CLAUDE.md
Claude Code instructions for cubetribe/ClaudeCode_GodMode-On, covering ccgodmode v8.6.0, core rules, agents, routing and workflows.
AI-System-Design-Consultant CLAUDE.md
Instructions for deepanshu2711/AI-System-Design-Consultant, covering claude.md, what this is, running it, load-bearing typos — do not "fix" these paths and agent node pattern.
team-shinchan AGENTS.md
Instructions for seokan-jeong/team-shinchan, covering agents.md - team-shinchan agent map, layer architecture, agent registry, call flow and quick reference.
jockey AGENTS.md
Instructions for recailai/jockey, covering repository guidelines, project structure & module organization, build, test, and development commands, coding style & naming conventions and testing guidelines.