core

core is a cursor rule for coding agents from vbalaraman0406/agile-sdlc-template. It costs 0 tokens per session (129 once invoked), scanned A, original, MIT.

A set of shared working rules for AI coding agents using an Agile software development process. It tells agents to follow project instructions, handle one task at a time, complete phases in order, and keep secrets out of source code.

In plain words
What is it for?
Use it to guide feature and bug work across coding agents such as Claude Code, Cursor, and Google Antigravity IDE.
Why use it?
It reduces inconsistent agent behavior, skipped work, mixed-up tasks, and accidental exposure of passwords or API keys.

Cursor rule

Install

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.

agentmods
npx agentmods add rules/vbalaraman0406/agile-sdlc-template/core
Clone the repo
git clone --depth 1 https://github.com/vbalaraman0406/agile-sdlc-template

Wrote 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.

agentmods badge for core

README.md
[![agentmods](https://agentmods.dev/badge/rules/vbalaraman0406/agile-sdlc-template/core.svg)](https://agentmods.dev/rules/vbalaraman0406/agile-sdlc-template/core)
Your own site
<a href="https://agentmods.dev/rules/vbalaraman0406/agile-sdlc-template/core"><img src="https://agentmods.dev/badge/rules/vbalaraman0406/agile-sdlc-template/core.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 129 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00129
Opus 5 $0.00000 $0.00064
Sonnet 5 $0.00000 $0.00026
Haiku 4.5 $0.00000 $0.00013

Measured 5d ago against content hash 8a6bc3e75fa5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

core 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 5d 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.

.templates/ide/cursor/core.mdc · 11 lines

What it actually says

Core Rules

  1. Follow AGENTS.md: The rules in AGENTS.md are your primary operational guide. Read it first.
  2. Sequential Execution: Complete all steps in a phase before moving to the next. Do not skip steps.
  3. Single-Task Focus: Work on one user story or bug at a time. Do not mix tasks.
  4. NO HARDCODED SECRETS: You are FORBIDDEN from writing code containing API keys, passwords, or tokens. Use environment variables or Vault.
Changes

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.

  1. 5d ago First seen · 11 lines · 0 tokens per session scan A 8a6bc3e75fa5

Subscribe to this mod's changes

core is a cursor rule published in the GitHub repository vbalaraman0406/agile-sdlc-template (2 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 129 tokens. 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.