Finding Original Cds

Finding original CDs on Discogs

Overview

Pick the best original or non-remastered CD pressing of an album and add it to the wantlist, balancing how common a pressing is (haves), price, and US availability. Core insight: have/want counts and price live in the public Discogs release API (WebFetch https://api.discogs.com/releases/, no auth) — the discogs MCP tools cannot return them. That's the step that gets re-derived every session; don't.

Default target is a US CD unless the user says otherwise.

When to use

• "Find an original / non-remastered CD of [album]" · "add the original pressing to my wantlist"
• "Which [album] CD should I get / buy?" · comparing pressings · avoiding remaster/deluxe/anniversary editions

Not for: vinyl-specific hunts (same method, swap the format filter), buying/checkout, or non-Discogs catalogs.

Tool reality — what returns what

| Need | Tool | Returns | Missing | |------|------|---------|---------| | List pressings | search_discogs(type="release") | format, label, year, ID | country, have/want | | Pressing details | get_release() (MCP) | country, catalog #, format, tracklist | have/want, price | | Have/want + price | WebFetch https://api.discogs.com/releases/ | community.have/want, lowest_price, num_for_sale, country, year, catalog | — (the key source) | | Cover/case photos | curl api.discogs.com/releases/ → images[].uri, then download + Read | public image URLs (no auth), then view the JPEGs | discogs.com website blocks WebFetch (403); the API doesn't | | Add | add_to_wantlist(release_id) | confirmation | takes release_id only |

• No marketplace tools exist. lowest_price is the global low, not US-seller-only. You cannot filter by seller location — hand off https://www.discogs.com/sell/release/?ships_from=United States.
• The wantlist listing lags after writes. A successful add_to_wantlist worked even if get_wantlist doesn't show it yet. To confirm a removal, re-issue the DELETE — a 404 "does not exist in the user's wantlist" proves it's gone.

Steps

1. List pressings: search_discogs(query=" ", type="release", per_page=50). Note the Format: CD IDs. (type="release" = specific pressings, not the master.)
2. Drop remaster/deluxe/club: exclude anything whose format says Remastered, Deluxe Edition, Box Set, Anniversary, Club Edition, or is a much-later year. Reissue alone is fine. Club-edition tell: these aren't always tagged Club Edition — a catalog number starting with D (e.g. D 110473) instead of the label's standard catalog/barcode is a giveaway for a BMG/Columbia House club pressing. Avoid those too.
3. Get stats (parallel): for each surviving CD, WebFetch https://api.discogs.com/releases/ → community.have, community.want, lowest_price, num_for_sale, country. Keep Country = US.
4. Compare & pick by the rubric below.
5. Add: add_to_wantlist(release_id=).
6. Hand off the ships_from=United States sell link.

Pick by (in order)

1. Most common = highest have — "the obvious one." Multiple US entries can share a catalog (e.g. CD 5013) but be separate pressings; the highest-have one is the common one, not necessarily the literal first press.
2. Price sanity — if the true first pressing carries a premium, take a cheaper common non-remastered reissue. If everything's cheap (typical for 80s/90s CDs), just take the most common.
3. Availability = num_for_sale — more for sale = better odds of a US-shipping copy.

Originality preference: original-era (release year ≈ album year) > reissue > never remaster/deluxe.

Original vs reissue vs remaster

• Original — year matches the album's first release; no "Reissue/Remastered" in the format. (Early CDs "Made in Japan for [US label]" are often the earliest US issues.)
• Reissue — format says Reissue; same master, later run. OK.
• Remaster / Deluxe / Anniversary — later year, extra tracks/discs, different sound. Avoid.
• Club Edition — BMG/Columbia House mail-order pressing. Often tagged Club Edition, but the tell is a catalog # starting with D (e.g. D 110473) instead of a normal barcode. Different packaging/quality (and sometimes swaps a digipak for a jewel case, or vice versa). Avoid.

Verifying packaging from photos (jewel case vs digipak)

Discogs often leaves packaging blank, so when it matters (the user wants a jewel case, not a digipak, or vice versa) — confirm it by eye. The discogs.com website blocks WebFetch (403), but the API returns image URLs unauthenticated, and the Read tool renders images visually. So:

1. curl -s -A "" "https://api.discogs.com/releases/" → read the images[].uri array (public CDN links on i.discogs.com; Discogs requires some User-Agent). The images key is present even with no auth token.
2. curl each uri to a scratchpad .jpg, then Read it to look.

Reading the photos:

• Discogs shots are usually flat scans of the printed artwork (front, booklet panels, discs, back inlay), not angled photos of the physical case. Infer the case from physical tells: rounded corners + visible fold lines + a thick/stepped cardboard spine edge → digipak; square corners + a flat tray-card back → jewel case.
• A standard UPC barcode on the back argues against a club edition; club pressings often drop the barcode and carry a D-prefixed catalog number (see above).
• If no image shows the actual case and the scans are ambiguous, say so — don't guess. Fall back to the seller's own marketplace listing photos, which usually show the physical item.

Output

Report to the user, in this shape:

1. A candidates table — ID · catalog/pressing · have · want · low price · # for sale (US, non-club CDs only).
2. The pick + one line why (most common / price / availability).
3. The add_to_wantlist confirmation.
4. The US-seller link: https://www.discogs.com/sell/release/?ships_from=United States.

Common mistakes

• Trusting search_discogs for country or popularity — it has neither; you must get_release / hit the API.
• Picking the literal first pressing when the user asked for the common one — optimize for haves unless they say "first pressing."
• Promising "ships from US" — you can only confirm a US pressing; seller location needs the sell-link filter.
• Re-checking get_wantlist right after adding and panicking it's missing — that's listing lag, not a failure.
• Flagging "you already own this" because the master shows ✓ in your collection — don't. The user knows. They're almost always filling a vinyl→CD format gap, and the master-level marker only means they own some pressing, not the CD. Add it without the caveat.

Example — Bryan Adams, Reckless (US CD)

API stats across US CD candidates: 11044695 (920 have, $4, 17 for sale) ≫ 3918297 reissue (377, $2) > 4258827 earliest CD 5013 (310, $2.23, only 4 for sale). Picked 11044695 — most common, original 1984 pressing, cheap, best-stocked. Nothing was expensive, so no original-vs-price tradeoff.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: rianvdm
• Source: rianvdm/product-ai-public
• License: MIT

Install and usage instructions live in the source repository linked above.