Borrowing it
Nothing to install: this file belongs to Shailesh200/prism. 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/Shailesh200/prism/main/AGENTS.mdgit clone --depth 1 https://github.com/Shailesh200/prismWrote 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/shailesh200/prism/agents-md)<a href="https://agentmods.dev/instructions/shailesh200/prism/agents-md"><img src="https://agentmods.dev/badge/instructions/shailesh200/prism/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/shailesh200/prism/agents-md"><img src="https://agentmods.dev/badge/instructions/shailesh200/prism/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 | $0.00534 | $0.00534 |
| Opus 5.5 | $0.00214 | $0.00214 |
| Sonnet 5.5 | $0.00107 | $0.00107 |
| Haiku 4.5 | $0.00053 | $0.00053 |
Grade A, and why
prism 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 7d 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 — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — Working on Prism
This repository is Prism: local context and change checks for coding agents (formerly working name RepoPulse).
Source of truth
plans/00_MASTER_DEVELOPMENT_PLAN.md- Active milestone doc under
plans/milestones/ plans/PROGRESS.md
If code and plan disagree, stop and reconcile the plan before continuing.
Hard Rules (mandatory)
- Never implement product code before the Master Plan is approved and M-000 (architecture docs) is Verified.
- Never create git commits until the owner explicitly approves (e.g. “approve”, “commit”, “approve M-XXX”). Keep changes uncommitted until then.
- One active milestone at a time.
- One milestone = one Git branch.
- Never develop on main.
- Never stack milestone branches.
- Never merge without owner approval.
- Never push unless owner explicitly asks.
- Every milestone must pass the complete verification suite.
- Every merge to main must leave the repository buildable.
- Every milestone must update the Master Plan progress.
- After a milestone is committed and merged to
main, always share a short snippet with the owner of what changed (bullets: APIs, packages, ADRs/plan notes). Keep it brief.
Architecture rules
- All user-facing surfaces consume
@repo-prism/corefor analysis. - Prism holds no third-party credentials. Connectors belong to the agent window; Prism discovers what is there and composes with it (ADR-0049). Do not add an OAuth flow to Prism.
- Do not reimplement analysis inside extensions or MCP tools.
- Prefer smaller milestones; do not expand scope without owner approval.
- New architectural choices require an ADR in
plans/adr/. - Privacy default: no network calls for core analysis.
Branch convention
milestone/M-XXX-short-name
Verification
bun run verify:milestone
What Prism is / is not
- Is: repository intelligence, maps, graphs, impact analysis, MCP tools for agents
- Is not: an AI coding assistant / LLM product
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.
- 7d ago Changed · -26 tokens per session af60b7cb3742
- 1mo ago Changed · +1 lines · +16 tokens per session 2d798be7dd53
- 1mo ago First seen · 59 lines · 544 tokens per session scan A b23e15fe3689
prism AGENTS.md is an instructions file published in the GitHub repository Shailesh200/prism (10 stars, last pushed 6d ago), licensed MIT. It adds 534 tokens to every session, about $0.0021 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 2026-08-31.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.