How to

Using your chart file with Claude

Claude cannot work out your birth chart. Ask it to, and it will produce placements that look right and are not — wrong Moon sign, degrees that are nowhere near, stated with complete confidence. That is not a flaw you can prompt your way around:the model is predicting text, not computing positions.

Give it a chart that was actually calculated, though, and it becomes one of the best tools available for thinking about one.

The four steps

1. 1Save the file where you can find it

   Your reading arrives as one .md file. Put it somewhere you will remember — Downloads is fine on a computer; on a phone, Files or Drive.

2. 2Open Claude and start a new chat

   Go to claude.ai or open the app. A free account is enough to begin; nothing here needs a paid plan.

3. 3Attach the file, do not paste it

   Use the paperclip and attach the .md. Attaching keeps the structure — the headings, the tables, the period dates. Pasting the text into the message box flattens it and costs you the parts that make it answerable.

4. 4Ask, and make it cite

   Add one line to your first question: “answer only from the attached file, and quote the section each claim comes from.” That single sentence is the difference between a reading and a guess.

Nothing here needs a paid plan. The whole thing takes about two minutes.

What to ask it

The file is written to be questioned rather than read straight through, so the useful questions are specific ones:

• “Which periods in my file favour a career move, and what are the exact dates?”
• “Summarise what my file says about partnership, and name the placements each point rests on.”
• “Where does my file refuse to answer, and why?”
• “What in this file contradicts something else in it?” — a genuinely good test of both the file and the model.

Why everyone else is selling you the prompt

There is a small industry selling astrology prompt packs. They are not useless, but they solve the wrong half of the problem.A prompt cannot conjure the positions of the planets on the morning you were born. Wrap the best prompt ever written around invented placements and you get a beautifully structured wrong answer.

The scarce part is the computed data: real positions, the ayanamsa stated, period boundaries with dates, the divisional charts and the strength tables. That is what the file is. The prompt is one sentence, and it is printed above for free.

Where it still goes wrong

• It will still generalise if you let it. Without the “answer only from the attached file” instruction it drifts back toward generic astrology writing it absorbed from the internet.
• Long chats lose the beginning. If answers start getting vaguer, begin a new chat and attach the file again.
• It is not a calculator. If you ask it to work out a transit for next March, it will attempt it and may be wrong. Anything requiring new computation is outside what the file can back.
• It cannot see a screenshot properly. A chart wheel image is the hardest possible input; the file is the easiest.

Other ways to read it

The same file works in any assistant on a phone, on a computer, inNotebookLM — which holds the whole thing at once and cites the line each answer came from — and inObsidian if you bought the vault add-on. If you have not got a file yet, thehonest guide to doing this free explains how far you can get without paying anyone, and where it stops.