nxs.epic

A command that turns a plain-language capability idea into an appropriately sized epic, a large piece of planned work, with user stories and acceptance criteria. After approval, it files the epic and its story issues in GitHub.

In plain words
What is it for?
Defining epics, writing user stories and acceptance criteria, and creating the resulting work items in GitHub.
Why use it?
It helps turn an idea into reviewable work and breaks oversized requests into smaller backlog items.

Command

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 commands/sameera/nexus/nxs.epic
Clone the repo
git clone --depth 1 https://github.com/sameera/nexus
Per session 73 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 13,523 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
Origin unknown 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 $0.00073 $0.13523
Opus 5 $0.00036 $0.06762
Sonnet 5 $0.00015 $0.02705
Haiku 4.5 $0.00007 $0.01352

Measured 3d ago against content hash dccbf8ea969d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

nxs.epic scanned grade C with 1 finding 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 3d 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- For story_type: system, at least one AC must state a measurable metric, threshold, or pass/fail assertion — not prose like "implement caching". -->
components/commands/nxs.epic.md · 954 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 3d ago First seen · 954 lines · 73 tokens per session scan C dccbf8ea969d

Subscribe to this mod's changes

nxs.epic is a command published in the GitHub repository sameera/nexus (10 stars, last pushed 3d ago), licensed GPL-3.0. It adds 73 tokens to every session and 13,523 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.