nse-vcp-screener

nse-vcp-screener is a skill for Claude Code, Codex from ajeeshworkspace/indian-trading-skills. It costs 82 tokens per session (1,180 once invoked), scanned A, original, MIT.

A stock screener for Indian NSE-listed companies that looks for Mark Minervini’s Volatility Contraction Pattern, a setup where price ranges and trading volume tighten during an uptrend.

In plain words
What is it for?
Use it to screen the Nifty 50, Nifty 200, Nifty 500, or a custom list for possible VCP and Stage 2 breakout setups.
Why use it?
It narrows a large stock list to companies that match those specific trend and price-pattern conditions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to screen the Nifty 50, Nifty 200, Nifty 500, or a custom list for possible VCP and Stage 2 breakout setups.

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Install with agentmods
npx agentmods add skills/ajeeshworkspace/indian-trading-skills/nse-vcp-screener
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.

Any agent
npx skills add ajeeshworkspace/indian-trading-skills --skill nse-vcp-screener
Clone the repo
git clone --depth 1 https://github.com/ajeeshworkspace/indian-trading-skills

Made for: Claude Code, Codex.

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 nse-vcp-screener

README.md
[![agentmods](https://agentmods.dev/badge/skills/ajeeshworkspace/indian-trading-skills/nse-vcp-screener/github.svg)](https://agentmods.dev/skills/ajeeshworkspace/indian-trading-skills/nse-vcp-screener)
Your own site
<a href="https://agentmods.dev/skills/ajeeshworkspace/indian-trading-skills/nse-vcp-screener"><img src="https://agentmods.dev/badge/skills/ajeeshworkspace/indian-trading-skills/nse-vcp-screener/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.

agentmods 80×15 button for nse-vcp-screener

Your own site · 80×15
<a href="https://agentmods.dev/skills/ajeeshworkspace/indian-trading-skills/nse-vcp-screener"><img src="https://agentmods.dev/badge/skills/ajeeshworkspace/indian-trading-skills/nse-vcp-screener.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,180 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00082 $0.01180
Opus 5 $0.00041 $0.00590
Sonnet 5 $0.00016 $0.00236
Haiku 4.5 $0.00008 $0.00118

Measured 12d ago against content hash bf6d909d4a9e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

nse-vcp-screener 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 12d ago.

The scan reads SKILL.md. This mod also ships 9 executable files (scripts/calculators/__init__.py, scripts/calculators/pivot_proximity_calculator.py, scripts/calculators/relative_strength_calculator.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/nse-vcp-screener/SKILL.md · 113 lines

How it starts

The opening of the file, as written. The whole thing — 113 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NSE VCP Screener

Overview

This skill screens Indian stocks (Nifty 50/200/500) for Mark Minervini's Volatility Contraction Pattern (VCP). The VCP identifies stocks in Stage 2 uptrends that are forming tightening bases with declining volume — the classic setup before a potential breakout.

The screening pipeline has 3 phases:

  1. Pre-filter: Quick quote-based filtering to eliminate obvious non-candidates
  2. Trend Template: Apply Minervini's 7-point Stage 2 criteria using 260-day histories
  3. VCP Detection & Scoring: Pattern analysis with 5-component composite scoring

Data Source

This screener uses yfinance with .NS suffix for NSE stocks and the niftystocks package for stock universe lists. No paid API keys required.

Execution

python3 scripts/screen_vcp.py --universe nifty500

Command-Line Arguments

Argument Default Description
--universe nifty50 Stock universe: nifty50, nifty200, nifty500, or custom
--custom-tickers Comma-separated tickers for custom universe (e.g., RELIANCE,TCS,INFY)
--min-contractions 2 Minimum number of contractions (2-4)
--t1-depth-min 10 Minimum T1 contraction depth %
--t1-depth-max 40 Maximum T1 contraction depth %
--contraction-ratio 0.75 Each contraction must be ≤ this ratio of the previous
--min-contraction-days 5 Minimum days per contraction
--lookback-days 120 Days to look back for pattern detection
--breakout-volume-ratio 1.5 Minimum volume ratio for breakout confirmation
--trend-min-score 85 Minimum trend template score (0-100)
--output-dir reports/ Output directory for results

Workflow

Step 1: Execute the Screener

Run the Python script with desired parameters:

python3 skills/nse-vcp-screener/scripts/screen_vcp.py \
  --universe nifty500 \
  --output-dir reports/

Step 2: Review Results

Read the full file on GitHub · 113 lines

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. 12d ago First seen · 113 lines · 82 tokens per session scan A bf6d909d4a9e

Subscribe to this mod's changes

nse-vcp-screener is a skill published in the GitHub repository ajeeshworkspace/indian-trading-skills (72 stars, last pushed 20d ago), licensed MIT. It adds 82 tokens to every session and 1,180 once invoked, about $0.0004 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 2026-08-30.

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