Pp Printgoat

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PrintGoat — Printing Press CLI

Prerequisites: Install the CLI

This skill drives the printgoat-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first:

1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows:

   npx -y @mvanhorn/printing-press-library install printgoat --cli-only

2. Verify: printgoat-pp-cli --version
3. Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill.

If the npx install fails before this CLI has a public-library category, install Node or use the category-specific Go fallback after publish.

If --version reports "command not found" after install, the runtime cannot see the binary directory on $PATH. Do not proceed with skill commands until verification succeeds.

PrintGoat unifies three separate 3D-model communities into one searchable, scriptable tool instead of three browser tabs. It's the only tool that actually resumes interrupted downloads via HTTP byte-range requests rather than just skipping files that already exist by name, and the only one that tells you when the same design is free on one site and paid on another before you download the wrong copy.

When to Use This CLI

Use PrintGoat when searching for a 3D-printable design across multiple communities at once, when you need to know if a paid model has a free equivalent elsewhere, when managing a library of downloaded STL/3MF/G-code files, or when running a batch download job that needs to survive interruption.

Anti-triggers

Do not use this CLI for:

• Do not use this for slicing STL/3MF files into G-code — it has no slicer integration.
• Do not use this to control a printer or print farm — no OctoPrint/Klipper integration exists.
• Do not use this to upload, publish, or cross-post your own designs to these sites — it is a discovery/download tool only.
• Do not expect Cults3D file downloads — that source is search/metadata only by the platform's own design.

Unique Capabilities

These capabilities aren't available in any other tool for this API.

Cross-site intelligence

• duplicates — See instantly when the same design is listed free on one site and paid on another, before you download the wrong one.

  Reach for this before downloading anything from a paid Cults3D listing — it tells you if the same file exists free elsewhere.

  printgoat-pp-cli duplicates "gopro mount" --agent

• feed — Follow a designer across all the sites they post to and see new uploads from any of them in one feed.

  Check this instead of manually revisiting three separate designer profile pages to see what's new.

  printgoat-pp-cli feed --agent

• formats gaps — Find alternatives when a model only ships in one file format and you need another.

  Use when a search result is STL-only and you need 3MF or STEP — this looks for tag-similar alternatives that include the missing format.

  printgoat-pp-cli formats gaps printables:3161 --agent

Provenance, resume & integrity

• history diff — Know exactly what changed on a model since you last looked — new files, price changes, license changes.

  Use this instead of re-fetching a model's full detail when you only need to know what's different since last time.

  printgoat-pp-cli history diff printables:3161 --agent

• license audit — Flag license conflicts across your entire local library against how you actually intend to use the files.

  Run this before a commercial print job to catch license conflicts the site's own badge won't warn you about.

  printgoat-pp-cli license audit --library --intent commercial --agent

• job download — Batch-download across all three sites as one crash-safe job that actually resumes from where it stopped.

  Use this for any multi-file or multi-source batch pull; it survives crashes and rate-limit backoff without restarting completed files.

  printgoat-pp-cli job resume job-20260721-01 --agent

• snapshot verify — Prove exactly which file version you used for a past print job, even if the upstream model has since changed.

  Use this for provenance/reproducibility on any job whose output needs to match a prior run exactly.

  printgoat-pp-cli snapshot verify batch-march-orders --agent

• library doctor — Find orphaned files, missing files, silent duplicates, and remote listings that have been delisted (and can never be re-fetched).

  Run periodically to catch link rot before a delisted source becomes unrecoverable if the local copy is ever lost.

  printgoat-pp-cli library doctor --agent

Print outcome memory

• similar — Re-search for alternatives after a bad print, automatically excluding the model and designer that failed you.

  Use after logging a failed print (log fail) instead of re-running a generic search that will surface the same bad result again.

  printgoat-pp-cli similar printables:3161 --agent

• designer stats — See your own success/failure rate with a specific designer, pooled across every site they publish on.

  Check this before downloading a new model from a designer you've printed before, when site-level popularity counts don't reflect your own experience.

  printgoat-pp-cli designer stats "PrintedSolid" --agent

HTTP Transport

This CLI uses Chrome-compatible HTTP transport for browser-facing endpoints. It does not require a resident browser process for normal API calls.

Command Reference

categories — Thingiverse categories

• printgoat-pp-cli categories list — List top-level categories
• printgoat-pp-cli categories things — List things in a category

collections — Thingiverse collections

• printgoat-pp-cli collections get — Get a collection by ID
• printgoat-pp-cli collections things — List things in a collection

creations — Cults3D creations (designs)

• printgoat-pp-cli creations get — Get a Cults3D creation's detail
• printgoat-pp-cli creations search — Search Cults3D creations by keyword

models — Printables 3D models (prints)

• printgoat-pp-cli models <id> — Get a Printables model's detail and file listing

search_things — Search Thingiverse things

• printgoat-pp-cli search-things <term> — Search for things by keyword

tags — Thingiverse tags

• printgoat-pp-cli tags <tag> — List things with a tag

things — Thingiverse things (3D models)

• printgoat-pp-cli things categories — List categories for a thing
• printgoat-pp-cli things files — List files for a thing
• printgoat-pp-cli things get — Get a thing by ID
• printgoat-pp-cli things images — List images for a thing
• printgoat-pp-cli things tags — List tags for a thing

users — Thingiverse users

• printgoat-pp-cli users collections — List a user's collections
• printgoat-pp-cli users get — Get a user's public profile
• printgoat-pp-cli users things — List a user's published things

Finding the right command

When you know what you want to do but not which command does it, ask the CLI directly:

printgoat-pp-cli which "<capability in your own words>"

which resolves a natural-language capability query to the best matching command from this CLI's curated feature index. Exit code 0 means at least one match; exit code 2 means no confident match — fall back to --help or use a narrower query.

Recipes

Unified search with narrowed output

printgoat-pp-cli search "cable clip" --agent --select results.name,results.source,results.price,results.license

Search results are deeply nested per-source objects; --select trims the response to just the fields an agent needs for a quick comparison.

Find the cheapest legitimate copy of a design

printgoat-pp-cli duplicates "phone stand" --agent

Surfaces the same design across sources with price and license side by side before you commit to a paid download.

Resume an interrupted batch job

printgoat-pp-cli job resume job-20260721-01 --agent

Continues a multi-source download job from its last completed byte offset per file instead of restarting.

Audit your library before a commercial print run

printgoat-pp-cli license audit --library --intent commercial --agent

Flags any locally downloaded file whose license doesn't permit the commercial use you've declared.

Auth Setup

Each source has a different auth story: Printables needs nothing at all (its GraphQL backend works fully anonymously for search and download). Thingiverse requires a free self-registered OAuth2 app token (auth set-token --source thingiverse). Cults3D requires your account handle plus a self-service API key via HTTP Basic Auth (auth set-token --source cults3d) — and by Cults3D's own design, its API can search and browse but never download other users' files, so Cults3D results are search/metadata only.

Run printgoat-pp-cli doctor to verify setup.

Agent Mode

Add --agent to any command. Expands to: --json --compact --no-input --no-color --yes.

• Pipeable — JSON on stdout, errors on stderr

• Filterable — --select keeps a subset of fields. Dotted paths descend into nested structures; arrays traverse element-wise. Critical for keeping context small on verbose APIs:

  printgoat-pp-cli categories list --agent --select id,name,status

• Previewable — --dry-run shows the request without sending

• Offline-friendly — sync/search commands can use the local SQLite store when available

• Non-interactive — never prompts, every input is a flag

• Read-only — do not use this CLI for create, update, delete, publish, comment, upvote, invite, order, send, or other mutating requests

Response envelope

Commands that read from the local store or the API wrap output in a provenance envelope:

{
  "meta": {"source": "live" | "local", "synced_at": "...", "reason": "..."},
  "results": <data>
}

Parse .results for data and .meta.source to know whether it's live or local. A human-readable N results (live) summary is printed to stderr only when stdout is a terminal AND no machine-format flag (--json, --csv, --compact, --quiet, --plain, --select) is set — piped/agent consumers and explicit-format runs get pure JSON on stdout.

Paths and state

Agents should treat the CLI's path resolver as part of the runtime contract:

• Use --home <dir> for one invocation, or set PRINTGOAT_HOME=<dir> to relocate all four path kinds under one root.

• Use per-kind env vars only when a specific kind must diverge: PRINTGOAT_CONFIG_DIR, PRINTGOAT_DATA_DIR, PRINTGOAT_STATE_DIR, PRINTGOAT_CACHE_DIR.

• Resolution order is per-kind env var, --home, PRINTGOAT_HOME, XDG (XDG_CONFIG_HOME, XDG_DATA_HOME, XDG_STATE_HOME, XDG_CACHE_HOME), then platform defaults.

• config contains settings like config.toml, profiles, and local download preferences (download_dir, default_formats via config set/config get). data contains data.db (the local SQLite store — downloads ledger, snapshots, print outcomes, followed designers, jobs). state contains persisted queries, jobs, and teach.log. cache contains regenerable HTTP/cache files.

• THINGIVERSE_TOKEN, CULTS3D_USERNAME, and CULTS3D_API_KEY always come from the environment and are never read from or written to any file — there is no credential file or auth command in this CLI.

• Run printgoat-pp-cli doctor --fail-on warn to surface path and credential-location warnings. agent-context exposes a schema v4 paths block for agents that need the resolved dirs.

• For MCP, pass relocation through the MCP host config. The MCP binary does not inherit CLI flags:

  {
    "mcpServers": {
      "printgoat": {
        "command": "printgoat-pp-mcp",
        "env": {
          "PRINTGOAT_HOME": "/srv/printgoat"
        }
      }
    }
  }

Fleet precedence: an inherited per-kind env var overrides an explicit --home for that kind. Use PRINTGOAT_HOME or per-kind vars as durable fleet levers, and use --home only for a single invocation. Relocation is not reversible by unsetting env vars; move files manually before clearing PRINTGOAT_HOME, or doctor will not find credentials left under the former root.

Automatic learning

This CLI ships a self-capturing learning loop. The CLI does its own bookkeeping: every invocation is journaled locally, a failed flag followed by a corrected retry auto-derives a flag_alias candidate, and a teach on a query family without a playbook auto-synthesizes a playbook_candidate from the session's journal. Your job is judgment only: recall first, act on surfaced candidates, teach the final answer, playbook amend when you observe a correction. You never record failures by hand.

Step 1: recall before any discovery

Before list/search/drill commands on a new user question, run:

printgoat-pp-cli recall "<user's question>" --agent

The response envelope:

{
  "query": "...",
  "normalized": "<normalized form>",
  "query_entities": ["..."],
  "found": true | false,
  "match_score": 0.0,
  "results": [
    { "resource_id": "...", "resource_type": "...", "venue": "...",
      "confidence": 2, "entity_match": "exact|partial|unknown",
      "source": "taught|preseed|pattern", "warnings": ["..."] }
  ],
  "mismatches": [ /* only when --debug-mismatches */ ],
  "warnings": [ /* top-level */ ],
  "candidates": [
    { "id": 12, "class": "flag_alias | playbook_candidate",
      "summary": "...", "sightings": 3, "last_seen": "...",
      "rationale": "...",
      "next_action": ["<trial command>", "printgoat-pp-cli learnings confirm 12"] }
  ],
  "playbook": {
    "query_family": "...",
    "playbook": {
      "steps": [ { "cmd": "<command with {slot} substitution>", "purpose": "..." } ],
      "entity_slots": ["$ENTITY"],
      "expected_tool_calls": 3
    },
    "slots_resolved": { "$ENTITY": { "token": "<live token>", "canonical": "<canonical>" } },
    "notes": "<workarounds + gotchas for this query family>"
  },
  "notes": "<duplicate surface for non-playbook callers>"
}

Empty-store short-circuit: if the store has no learnings, playbooks, or candidates yet (recall finds nothing and learnings list and learnings candidates are both empty), skip recall for the rest of this session instead of taxing every query; resume recall-first once something has been taught.

Step 2: decision tree

Read candidates, playbook, notes, results[0], and warnings in that order:

if Candidates present (warnings include "candidates_present"):
    -> candidates are try-then-confirm, never facts. Follow each candidate's
       two-step next_action verbatim: run the trial command first, then run
       `learnings confirm <id>` only after the trial verified the behavior.
       Reject a wrong candidate with `learnings reject <id>`.
    -> NEVER re-teach something recall surfaced as a candidate; confirm or
       reject that candidate instead of teaching a duplicate.
    -> candidates ride alongside playbooks and resource hits, not instead of
       them; continue with the branches below after acting on them.

if Playbook present:
    -> READ Playbook.notes verbatim FIRST (workarounds + gotchas the CLI surface doesn't expose)
    -> replay Playbook.steps in order, substituting Playbook.slots_resolved entries
       for the entity slot tokens. If a step's slot is unresolved, fall back to
       discovery for that step only.
    -> the Playbook's expected_tool_calls is a budget; if you find yourself running
       materially more, record the divergence via `printgoat-pp-cli playbook amend`
       at end-of-session.

elif Notes present (no Playbook):
    -> read Notes verbatim before any discovery step; they carry known gotchas
       for this query family even when no structured choreography exists yet.

elif Found AND Results[0].EntityMatch == "exact" AND Results[0].Confidence >= 2:
    -> skip discovery; fetch live data for Results[*].ResourceID in parallel

elif Found AND Results[0].EntityMatch == "partial":
    -> candidate hint, NOT a hit; read the resource title to validate before trusting

elif (any row in Mismatches[] when --debug-mismatches was passed):
    -> treat as cold start; the stored learning is for a different entity
       (different canonical resolved from query_entities)

else:  // Found == false, no playbook, no notes
    -> cold start; run discovery normally; teach the answer afterward (Step 4).
       If the family has no playbook yet, that teach auto-synthesizes a
       playbook candidate from this session's journal - you do not need to
       record one by hand.

Playbook and Notes are orthogonal to the per-resource path. A recall response can carry both a Playbook AND a Results[] hit - use both: the Playbook tells you which choreography to run; the resource hits short-circuit specific steps. Default to skipping mismatches; pass --debug-mismatches only when investigating cold-start surprises.

Candidate judgment details: learnings confirm <id> prints the candidate's full payload before materializing it - check that the printed payload matches the behavior you verified. learnings reject <id> tombstones the derivation signature so the same candidate does not resurface. The envelope carries only the few candidates worth acting on now; printgoat-pp-cli learnings candidates lists the full open set.

Graceful degradation: if learnings confirm is an unknown command, you are driving an older binary - ignore the candidates guidance and follow the rest of the protocol.