ZergScholar — Local ↔ Web Bridge

Sync papers between an Obsidian vault and the zergscholar web app via a Bearer- token-authenticated REST surface. The vault stays the source of truth for notes / drafts; zergscholar holds collaborator state and canonical paper metadata. Linkage is tracked via a zergscholar_id field on each linked note's frontmatter.

First-Time Setup (~2 minutes)

1. Sign in to your zergscholar deployment (default

https://zergscholar.fly.dev) and go to Settings → API Tokens.

1. Mint a token with write scope for the workspace you want to

sync against (the personal library is the typical default). Copy the zsk_... value — it's shown once.

1. Run setup:

``bash python3 ~/.claude/skills/zergscholar/zergscholar_skill.py setup ``

The walkthrough prompts for base URL, the token you just minted, the default workspace, and the Obsidian vault path. Writes ~/.claude/skills/zergscholar/config.json.

The default vault path is /Users/idanbeck/Library/Mobile Documents/iCloud~md~obsidian/Documents/idanbeck to match the layout documented in that vault's AGENTS.md (Reading/ Research/, Reading/pdfs/, Writing/, Research/).

Multi-Account Convention

config.json mirrors notion-skill:

{
  "default_account": "personal",
  "vault_path": "/Users/.../idanbeck",
  "accounts": {
    "personal": { "base_url": "...", "token": "zsk_...", "default_organization_id": "uuid" },
    "epoch":    { "base_url": "...", "token": "zsk_...", "default_organization_id": "uuid" }
  }
}

Every command takes -a ACCOUNT to override the default. Mint one token per account (workspace) you want to bridge.

Commands

All commands print JSON to stdout and exit with non-zero on error. Run with python3 ~/.claude/skills/zergscholar/zergscholar_skill.py <subcommand>.

whoami [-a ACCOUNT]

Token info + accessible workspaces. Useful as a connectivity check.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py whoami

list-papers [-a] [--workspace ID] [--linked|--unlinked]

Paper list for a workspace, joined with the vault. Each row tells you whether a local note exists and where.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py list-papers
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py list-papers --unlinked

Output rows include: id, title, year, doi, arxivid, status, linkedlocal, local_path.

push-paper FILE.md [-a] [--workspace ID] [--force] [--pdf PATH]

Push a vault note to zergscholar. Reads the note's frontmatter (year, arxiv / arxiv_id, doi, authors if present), parses the H1 as the title, and uses the ## Abstract or ## Technical Synopsis section as the abstract. If a PDF named after the title sits in Reading/pdfs/, it's uploaded automatically; pass --pdf PATH to override the discovery (useful when the H1 expands what the filename abbreviated — e.g. "Large Language Model" vs "LLM").

The skill marks the note as linked (writes zergscholarid and zergscholarpushedat to frontmatter) only when there's nothing left to retry. If a local PDF was found but the upload failed, the note stays un-linked so the next push re-enters the dedup path and retries the upload instead of short-circuiting on alreadylinked.

The response includes a linked: bool field that reflects this: true means the frontmatter was updated; false means metadata was created server-side but the note wasn't linked (typically due to a PDF upload failure that should be retried).

Re-running an already-linked push skips with already_linked unless you pass --force. With the post-2026-05 skill, --force never creates a duplicate row: when there's an arXiv/DOI dedup hit, the skill re-uses the existing paper and re-runs enrichment + PDF upload against it. If you previously had a "linked but no PDF on server" state, just push-paper --force and the PDF gets attached without spawning a new paper id.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py push-paper \
  "$VAULT/Reading/Research/A Comprehensive Survey on Graph Neural Networks.md"

# Explicit PDF path when the filename diverges from the H1:
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py push-paper \
  "$VAULT/Reading/Research/<note>.md" \
  --pdf "$VAULT/Reading/pdfs/<abbreviated-filename>.pdf"

pull-paper IDORTITLE [-a] [-o PATH] [--no-knowledge]

Fetch a paper from zergscholar and write a vault note. Accepts either the paper's UUID or a title (fuzzy match within the default workspace). Writes to Reading/Research/<title>.md matching the existing template (frontmatter + H1 + standard H2 sections).

Pulls knowledge entries by default — workspace-side AI summaries / key findings / methodology / insights produced via the in-app research assistant or by collaborators are woven into the matching H2 sections. Pass --no-knowledge to skip (faster).

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py pull-paper \
  "Attention Is All You Need"

status [-a]

Vault scan + remote count summary. Reports total notes, linked vs unlinked, plus the remote paper count for the default workspace.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py status

setup

Interactive — see "First-Time Setup" above.

Workflows

"Publish this paper to my workspace"

# I just finished reading and noting this one — push it
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py push-paper \
  "$VAULT/Reading/Research/<title>.md"
# → paper appears in /app/library; PDF auto-attached if found

"Bring this paper from the team library into my vault to read"

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py pull-paper \
  "<title or uuid>" -a epoch
# → new note in Reading/Research/, ready for "My Thoughts" + notes

"What hasn't been pushed yet?"

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py list-papers --unlinked
# → JSON list of remote papers without local notes; conversely,
#   walk Reading/Research/ for notes without zergscholar_id

Output Format

All commands emit JSON to stdout. push-paper response shape:

{
  "ok": true,
  "paper_id": "uuid",
  "title": "...",
  "workspace_id": "uuid",
  "pdf_uploaded": true,
  "pdf_path": "/Users/.../Reading/pdfs/<filename>.pdf",
  "pdf_result": {
    "paperId": "uuid",
    "filename": "<filename>.pdf",
    "bytes": 716869,
    "has_pdf": true,
    "extractedTextChars": 0,
    "pageCount": null
  },
  "linked": true,
  "local_path": "/Users/.../<note>.md"
}

Field notes:

• linked — whether zergscholar_id was written to the note's frontmatter. false means metadata was created/found server-side but a retry-worthy step failed (typically PDF upload). Re-running push-paper will pick up where it left off via arXiv-id dedup.
• pdfresult.haspdf — server-confirmed boolean that the paper now has a PDF attached.
• pdf_result.extractedTextChars / pageCount — populated asynchronously by the server-side text-extraction pass. 0 / null on a fresh upload means extraction is queued; re-fetch the paper later or trigger explicitly with extract-text.

Errors are also JSON:

{
  "error": "api_error",
  "message": "Token requires 'write' token scope; your token has [read].",
  "status": 403
}

Exit code 0 for success, 1 for general errors, 2 for setup / configuration problems.

Frontmatter Conventions

The skill reads these fields when pushing a paper:

The skill writes these fields back after a successful push:

Security Notes

• config.json contains a token that's equivalent to a workspace-

scoped session. Treat it like a credential — keep it on disk, don't commit it.

• Tokens are workspace-scoped: a write token for workspace A can't

read or write workspace B. Mint separate tokens per account in config.

• Revoke / regenerate tokens at <base_url>/app/settings → API

Tokens at any time. The skill will get a clear 401 and you can re-run setup.

push-knowledge FILE.md [-a] [--paper-id ID]

Extract H2 sections of an already-linked paper note and POST them as typed knowledge entries. Mapping:

Skips empty / placeholder sections (To be filled during review). Client-side dedup against existing entries on the paper — re-running won't double-post.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py push-knowledge \
  "$VAULT/Reading/Research/<title>.md"

push-draft FILE.md [-a] [--force]

Push a Writing/ note as a zergscholar documents row. Reads the H1 as title, body becomes the doc content, format from frontmatter (defaults to markdown; latex / typst honored). If the note already has zergscholar_id, update-in-place; pass --force to create a brand-new doc instead.

pull-draft DOC_ID [-a] [-o PATH]

Fetch a remote document into Writing/<title>.md with frontmatter linking and format preserved.

pull-all [-a] [--workspace ID] [--force]

Bulk-pull every paper from the workspace into Reading/Research/. Skips already-linked papers unless --force. Useful for bootstrapping a fresh vault from an existing workspace.

push-folder DIR [-a] [--workspace ID] [--dry-run] [--force]

Recursively walk a vault folder, push every .md paper note that isn't already linked. --dry-run reports the candidate set without touching the server. Idempotent — re-runs pick up only new notes. DOI/arXiv pre-flight on every push so duplicates don't sneak in.

# What would happen?
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py push-folder \
  "$VAULT/Reading/Research" --dry-run
# Do it
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py push-folder \
  "$VAULT/Reading/Research"

push-annotation FILE.md "..." [--page N] [--highlight TEXT]

Post an annotation against a linked paper. The note's zergscholar_id provides the paper id; pass --paper-id to override.

Dedup behaviour (push-paper)

push-paper finds an existing paper to attach to in priority order:

1. arXiv-id / DOI lookup via /api/external/find-paper when the

note's frontmatter has arxiv: or doi:. This is the primary path and catches most workspace-side duplicates.

1. Existing zergscholar_id on the note — used as a recovery

fallback when a previous push linked the note but the dedup key isn't (or no longer is) on file with the server. The skill calls get_paper(id) and re-attaches if the paper still exists.

If both probes return nothing, a new paper row is created.

--force does NOT create duplicate rows. It only skips the already_linked short-circuit so the post-dedup work (enrichment + PDF upload) re-runs against the existing row. This is the recovery tool for any "linked, but the upload didn't finish" state.

Bulk maintenance commands

These walk the workspace server-side and reconcile gaps. All take --workspace ID (override default), --limit N (stop after N papers), and --dry-run (report candidates without writing).

enrich-all [-a]

Walk every vault note with zergscholar_id and re-push tags, body content, and authors to the existing remote paper. Useful for backfilling fields that an earlier push-paper version didn't carry (early bulk-pushes only sent title + year + arxiv id).

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py enrich-all

enrich-metadata [-a] [--workspace ID] [--limit N] [--dry-run]

For every paper in the workspace that has an arxiv_id but is missing authors or abstract, fetch from the arXiv ATOM API (batched 100 per request, 3s between batches) and call enrich-paper server-side. Polite to arXiv; safe to re-run.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py enrich-metadata --dry-run
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py enrich-metadata --limit 50

backfill-pdfs [-a] [--workspace ID] [--limit N] [--dry-run]

For every paper that has an arxivid but no PDF attached, fetch https://arxiv.org/pdf/<arxivid>.pdf and upload it via the existing upload-pdf endpoint. Polite at 3.5s between fetches per arXiv's unauthenticated-bulk guidance. The natural way to recover from "metadata pushed but PDF never made it" state across many papers without manually re-pushing each note.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py backfill-pdfs --dry-run
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py backfill-pdfs --limit 20

extract-text [-a] [--workspace ID] [--limit N] [--dry-run]

For every paper with a PDF and no extracted text, hit the server's per-paper extract-text endpoint. The server runs the extraction asynchronously after upload-pdf, but if it stalls or you've backfilled PDFs in bulk, this kicks the queue.

python3 ~/.claude/skills/zergscholar/zergscholar_skill.py extract-text --dry-run
python3 ~/.claude/skills/zergscholar/zergscholar_skill.py extract-text --limit 100

pull-drafts [-a] [--workspace ID] [--force]

Bulk-pull every document from the workspace into Writing/. Mirrors pull-all for documents instead of papers. Skips already-linked drafts unless --force.