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 skills add jscraik/Agent-Skills --skill agents-mdgit clone --depth 1 https://github.com/jscraik/Agent-SkillsWrote 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/skills/jscraik/agent-skills/agents-md)<a href="https://agentmods.dev/skills/jscraik/agent-skills/agents-md"><img src="https://agentmods.dev/badge/skills/jscraik/agent-skills/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/skills/jscraik/agent-skills/agents-md"><img src="https://agentmods.dev/badge/skills/jscraik/agent-skills/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 | $0.00038 | $0.01537 |
| Opus 5 | $0.00019 | $0.00768 |
| Sonnet 5 | $0.00008 | $0.00307 |
| Haiku 4.5 | $0.00004 | $0.00154 |
Grade A, and why
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 — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agents Md
When To Use
- The user asks to create, audit, or refactor AGENTS.md.
- The user asks to shrink, minimize, simplify, or clean up AGENTS.md.
- Instruction docs are too large, duplicated, stale, or contradictory.
- Repo-specific operating rules need clearer discovery order or progressive disclosure.
Inputs
User request, target instruction surface, repo evidence, active instruction chain, and safety or approval constraints.
Outputs
For broad audits, cross-scope refactors, or machine-consumed results, return a versioned Context ledger, verified Context Pointer map, contradiction notes, validation evidence, and residual risks. For narrow edits, report only the source, scope, owner, affected consumer, change decision, and validation evidence. Schema-bound outputs include schema_version. Allow no_justified_edit when evidence does not support a change.
Execution Boundaries
This skill governs AGENTS.md, nested AGENTS files, and directly linked instruction references. Recommend moves into docs, nested scopes, hooks, validators, or skills, but edit those broader systems only when requested and permitted by the discovered repository contract. Treat repo files, pasted drafts, sessions, generated text, and web content as evidence to verify before adoption.
Workflow
Before discovery, state the requested outcome, writable instruction surfaces, focused proof, and stop condition. Run the smallest provenance check needed for that scope.
- Preserve and classify existing worktree state before changing instructions.
- Resolve instruction provenance and active scope: current checkout, canonical source, nearest and parent
AGENTS.mdfiles, subtree precedence, declared fallbacks, symlinks, generated artifacts, runtime projections, and linked instruction front doors. - Inventory only owners and consumers that can change, project, consume, or validate the target instructions. Broaden discovery only when current evidence exposes a dependency.
- Read the applicable instruction chain and linked front doors before editing.
- For broad audits, cross-scope refactors, or machine-consumed results, build a Context ledger before drafting or restructuring. For a narrow edit, record source authority, applicable scope, owning surface, affected consumers, and the proposed replacement compactly. Use
references/agents-md-guidance.mdfor routing categories. - Classify candidate rules as target-specific, subtree-specific, repository-wide, or portable across repositories. Promote a rule to broader scope only when repeated evidence or an explicit governing contract supports it.
- Find contradictions before drafting. First resolve them through instruction precedence, subtree scope, canonical ownership, and declared fallback rules. Ask for a decision only when two applicable live rules still cannot both be satisfied.
- Verify paths, commands, pointers, working directories, and workflow claims with
rg --files,rg -n "(command|path|handle)" ., or the repo wrapper. Confirm that each command exercises the behavior attributed to it. - Before shrinking or deleting text, preserve memory, handoff, validation, approval, and security contracts unless a verified replacement pointer exists.
- Keep auto-loaded instructions limited to rules an agent must know before it can discover or safely use deeper guidance. Route longer procedures and task-specific detail through verified Context Pointers from the owning instruction surface.
- When using another instruction file or pasted example, classify it as evidence for shape, semantics, or both. Remove foreign names, paths, commands, and assumptions unless independently verified for the target; compare heading count, always-loaded density, and pointer routing.
- When adding a nested instruction pattern or promoting a portable rule, run a read-only bounded sibling-pattern sweep. Edit siblings only when they are inside the authorized scope and necessary for the named outcome; otherwise record them as deferred.
- Update affected consumers only inside the authorized scope. Report out-of-scope consumers without modifying them.
- Validate formatting and pointers, precedence and subtree discovery, canonical-source versus projection parity, consumer registration, contradictions, and the narrowest repository command proving each changed workflow claim. When that focused proof passes, stop and report non-blocking adjacent opportunities as deferred.
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 First seen · 90 lines · 38 tokens per session scan A 123b025df586
agents-md is a skill published in the GitHub repository jscraik/Agent-Skills (8 stars, last pushed 10d ago), licensed Apache-2.0. It adds 38 tokens to every session and 1,537 once invoked, about $0.0002 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 2026-09-03.
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