A Vedic astrology calculation tool for birth charts, planetary periods, calendars, transits, relationship matching, and structured reports.

Use it to calculate a kundali, dasha timeline, panchang, gochar transits, guna milan, or an astrology report in supported languages.

It provides a defined way to calculate these results from birth details, dates, times, and locations instead of relying on informal interpretation.

astro — Skill for Codex by adityarya24

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 adityarya24/astro-skill --skill astro

Clone the repo

git clone --depth 1 https://github.com/adityarya24/astro-skill

Made for: 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/adityarya24/astro-skill/astro.svg)](https://agentmods.dev/skills/adityarya24/astro-skill/astro)

Your own site

<a href="https://agentmods.dev/skills/adityarya24/astro-skill/astro"><img src="https://agentmods.dev/badge/skills/adityarya24/astro-skill/astro.svg" alt="Measured on agentmods" height="20"></a>

Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,408 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00054	$0.01408
Opus 5	$0.00027	$0.00704
Sonnet 5	$0.00011	$0.00282
Haiku 4.5	$0.00005	$0.00141

Measured 6d ago against content hash bd7a600d7de7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

astro 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 6d ago.

The scan reads SKILL.md. This mod also ships 41 executable files (scripts/__init__.py, scripts/ashtakavarga.py, scripts/aspects.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.

astro/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Astro Skill

Use this skill to calculate and explain Vedic astrology outputs. Keep responses practical, respectful, and grounded in computed data. Do not predict death, accidents, medical diagnoses, or unavoidable harm.

Defaults

Ayanamsa: Lahiri Chitrapaksha.
House system: whole sign.
Default language: Hinglish (hin), with Hindi (hi) and English (en) supported by callers.
Default location for non-birth daily work: Delhi, India.

Required Inputs

Kundali: date of birth, time of birth, place, latitude, longitude, timezone.
Dasha: kundali output from kundali_calculator.py.
Panchang: local date, place, latitude, longitude, timezone.
Basic report: kundali JSON, with optional dasha JSON and panchang JSON.
PDF report: kundali JSON plus optional dasha and panchang JSON; dasha is recommended for the timeline chart.
Gochar (transits): kundali JSON plus a local calendar date (and optional place for location-sensitive work).
Guna Milan: two complete kundali JSON files (both people need full birth details).
Muhurta and other advanced modules may require purpose plus date range when implemented.

Phase 1 Workflow

Run scripts/kundali_calculator.py with birth details and --json.
Inspect lagna, rashi, nakshatra, nakshatra_pada, planets, houses, and dasha_seed.
Run scripts/dasha_calculator.py --kundali-json <path> --json when dasha timing is needed.
Explain the output in the user's preferred language/tone. Mention calculations and practical meaning; avoid mystical filler.

Phase 2 Workflow

Run scripts/panchang_calculator.py with local date, place, latitude, longitude, timezone, and --json.
Inspect vara, tithi, paksha, nakshatra, yoga, karana, sunrise, and sunset.
Use the Panchang output as calculation data for daily guidance or later muhurta work. Do not convert it into muhurta recommendations unless a muhurta module is available.
If sunrise or sunset is null, check the warnings array and explain that the rest of the Panchang fields still came from computed solar/lunar positions.

Read the full file on GitHub · 94 lines

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

6d ago First seen · 94 lines · 54 tokens per session scan A bd7a600d7de7

Subscribe to this mod's changes

astro is a skill published in the GitHub repository adityarya24/astro-skill (1 stars, last pushed 7d ago), licensed MIT. It adds 54 tokens to every session and 1,408 once invoked, about $0.0003 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.

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