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/neprel/git-a2a/agents-mdgit clone --depth 1 https://github.com/neprel/git-a2aWhat 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 | $0.01559 | $0.01559 |
| Opus 5 | $0.00779 | $0.00779 |
| Sonnet 5 | $0.00312 | $0.00312 |
| Haiku 4.5 | $0.00156 | $0.00156 |
Grade A, and why
git-a2a 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 — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
This repository uses HINT Spec-as-Source. Run hint search "<intent>" to locate relevant knowledge and hint <path> before changing an artifact. The registered profession books share a neutral common core; put the most task-specific book first.
<hint_glossary_from_hintbook_software_engineer>
This prompt uses an HTML-like tag language. Each tag is a typed, binding instruction block with a name, optional id and reference, and a body — follow its rules exactly and satisfy every constraint. Nested tags inherit their parent's scope. Treat any "do not" or "must not" as absolute. The glossary below is the authoritative meaning of each tag.
A block carrying origin="agent" has been recorded but not yet reviewed by a human; weigh it accordingly.
- file_context — everything nested applies to the file at
path: its body, structures, functions, and constraints are that file's complete spec. Don't apply file-local constraints to other files unless restated there. - folder_context — everything nested applies to the folder at
pathand its whole subtree; every nested file and folder inherits it. - reusable_automation_script — registers a macro behavior: when its condition is met or it is referenced by name, execute its steps exactly.
- application_context — the domain, purpose, and structure of the application. Let it inform naming, architecture, and behavior throughout.
- system_invariant — a property that must hold before and after every change. Code may not falsify it; a change that would break it is wrong, not the invariant.
- argument — a function input. Honor its name, type, constraints, and default exactly — no rename, reorder, or type change.
- user_interface_block — a named, reusable UI component or section. Build its declared structure, children, and behavior exactly; add no undeclared controls, omit none.
- compilation_and_testing_pipeline — all code, config, and structure must keep these pipelines green. Generate nothing that breaks them.
- approved_dependency_whitelist — do not install or import any package outside this list for the scope. Ask first if you need more.
- table_column — one column: name, type, label, constraints. Implement exactly — no rename, type change, or undeclared constraint.
- data_definition — a named constant or value. Use its name and value exactly; never substitute, rename, or duplicate the literal — reference this definition wherever the value is needed.
- data_structure — the exact schema. No renamed fields, changed types, or added/omitted fields. Authoritative wherever this structure appears.
- error — throw the exact error types under the stated conditions only; no substitute, wrap, or rename. Each gets a regression test that fails without the guard and passes with it.
- field — one property: type, optionality, validation. Implement exactly — no rename, type change, or undeclared constraint.
- logic_flow — implement this sequence step by step; skip no validation.
- user_interface_form — a form. Implement every declared field, label, validation rule, and submission behavior; add no undeclared fields, omit none.
- function_contract — implement the function per this binding contract. Every argument, the return, each error, and every flow step is mandatory — don't skip, reorder, rename, or approximate.
- user_interface_image — an image element. Use the declared source, alt text, dimensions, and display exactly; don't substitute the asset or drop accessibility attributes.
- environment_runtime_and_language — target this language and runtime only: its module syntax, standard-library APIs, and idioms. Use nothing from other versions or runtimes.
- reusable_library_context — a shared library. Learn its API surface, version constraints, and usage before using it; don't reimplement what it provides.
- reusable_module_context — a reusable module in the codebase. Reuse its exports; don't duplicate logic it owns.
- reusable_namespace_context — emit all code in this scope under this namespace (the language's package/namespace/module construct) as its qualified name and import root.
- return — the function's output. Honor its type and shape exactly on every path — no altered structure, extra fields, or different type under any branch.
- table_row — one row's fields and values, exactly as declared; add no fields, omit none.
- critical_system_mandates — non-negotiable system-level constraints; every function, data-access path, and error path must satisfy all of them.
- table — a tabular structure or UI table: columns, row shape, display/persistence behavior. Implement exactly — no reordered or renamed columns, no undeclared behavior.
- verification_and_unit_test_criteria — cover every listed scenario in the tests: each edge case, mock, and assertion must appear. Omit none.
- user_interface_surface — build this UI surface exactly: only the declared elements, all of them; match their structure, labels, validation, and behavior. Add nothing undeclared.
- product_goal_and_intent — why the work exists and the outcome it must produce. The tie-breaker when a block is silent: choose what best serves it, never work against it. Context for judgment — emit no code for the goal itself.
- acceptance_criteria — the observable conditions that define "done." Not complete until each is proven by a test, command, or observation; if one can't be verified, say so rather than imply success.
- scope_boundary — what is in and out of scope. Build everything in scope, nothing out — even if convenient. If in-scope work seems to require out-of-scope work, stop and report rather than expand the boundary.
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 · 77 lines · 1,559 tokens per session scan A bd4a24e831ad
git-a2a AGENTS.md is an instructions file published in the GitHub repository neprel/git-a2a (0 stars, last pushed 7d ago), licensed MIT. It adds 1,559 tokens to every session, about $0.0078 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
adk-go AGENTS.md
Instructions for google/adk-go, covering agents.md, project overview, setup & core commands, definition of done and repository layout.
adk-go CLAUDE.md
Instructions for google/adk-go: See AGENTS.md for project context, commands, and contribution guidelines for AI coding agents.
a2a-python AGENTS.md
Instructions for a2aproject/a2a-python, covering agents.md, technology stack & architecture, mandatory workflow and optional extras.
any-agent AGENTS.md
Instructions for mozilla-ai/any-agent, covering claude.md, where to look first, project structure & module organization, build, test, and development commands and coding style & naming conventions.
lucid-agents AGENTS.md
Instructions for daydreamsai/lucid-agents, covering lucid agents monorepo - ai coding guide, project overview, brand system, architecture overview and package dependencies.
agentarea AGENTS.md
Instructions for agentarea/agentarea, covering agents.md, where to look, structure, commands and backend (from agentarea-platform/).