bibcheck

name	bibcheck
description	Many-agent bibliography audit. Verify each citation in a .bib file by spawning narrow-focus agents that confirm DOI/URL and cross-check that all fields belong to the same paper. Catches mixed-up entries (one paper's title with another's authors), wrong years, journal misattributions, and unverifiable references. Use when reviewing a manuscript's bibliography for accuracy before submission, after literature review, or when inheriting a .bib from a coauthor.
allowed-tools	Bash(claude*), Bash(ls*), Bash(cat*), Bash(wc*), Bash(grep*), Bash(mkdir*), Bash(cp*), Read, Write, Edit, WebSearch, WebFetch, Agent
argument-hint	[--by-citation|--by-field] <path-to-bib-or-tex> [--max-parallel N]

Bibcheck: Many-Agent Bibliography Audit

You are running /bibcheck — a verification routine that audits a bibliography by spawning many narrow-focus agents, one per citation (or one per field), so each agent operates on a small task with low risk of attention decay over a long context.

Why narrow agents

A single agent asked to audit 80 citations in one pass tends to drift: early entries get careful treatment; later entries get pattern-matched. Splitting the work — one agent per entry, or one specialist per field across all entries — keeps each agent focused on something small and verifiable. The bottleneck shifts from agent attention to orchestration, which is what cheap parallel agents are for.

See methodology.md for the full rationale.

Step 0: Read your full methodology

1. Read methodology.md in this skill directory — it explains the gradient-decay rationale and the audit standard for both modes.
2. Confirm you understand which mode the user invoked.

Step 1: Parse arguments

Modes:

Argument	Mode	What it does
--by-citation <file> (default if omitted)	Per-citation	One Agent subagent per bib entry. Each fully audits its one entry.
--by-field <file>	Per-field	One CLI subprocess per field (title, year, journal, authors, volume/issue, pages, DOI). Each specialist reads the whole bibliography but checks only its field.
--max-parallel N	Optional	Cap concurrent subagents/subprocesses. Default 8.

Input file:

• .bib — use directly
• .tex — extract \bibitem{} blocks or read the linked .bib from \bibliography{}. If both a .tex and a .bib are in the same folder, prefer the .bib.

If the user invoked /bibcheck with no arguments, ask:

• Which mode? (per-citation is the default; per-field is for adversarial cross-checks)
• Path to the .bib or .tex?

Do not guess.

Step 2: Set up the run directory

Create a working folder next to the input file:

<bib_dir>/bibcheck_<timestamp>/
  ├── input.bib              # copy of source
  ├── entries/               # split entries (one .bib per entry)
  ├── reports/               # per-agent JSON/markdown outputs
  ├── bibcheck_report.md     # final consolidated report
  └── corrected.bib          # drop-in replacement

The timestamped folder means re-runs do not clobber prior audits.

Step 3a: Per-citation mode

1. Split the .bib into per-entry files. A robust splitter: read the .bib, walk for @type{key, openers, balance braces to find each entry's close, write to entries/<key>.bib.

2. Launch agents in waves of --max-parallel. For each entry, dispatch one Agent subagent (subagent_type: general-purpose) with this brief:

   You are auditing one bibliography entry. The entry is:
   
   <paste the .bib block>
   
   Your job:
   1. Identify the cited paper. Use WebSearch (and WebFetch if needed) to find it.
   2. Locate a canonical anchor: DOI, journal landing page URL, or author working-paper URL.
   3. Cross-check every field in the .bib block against the canonical source:
      - title, authors, year, journal/booktitle, volume, number, pages, publisher, DOI
   4. Specifically test for "field mixing" — e.g., the title belongs to one paper but the authors or year belong to another. This is the most common silent error in inherited .bib files.
   5. Output JSON to <reports/<key>.json> with:
      - status: "clean" | "corrected" | "unverifiable"
      - one_sentence: plain-language description of the paper (one sentence)
      - canonical_url: DOI or URL
      - issues: list of {field, original, corrected, reason}
      - corrected_bib: the corrected entry (or the original if status=clean)
   
   You do NOT modify the input file. You only write the report and the corrected entry.
   

3. Final reviewer pass. When all entries are done, dispatch a single reviewer agent that:

   • Reads every reports/*.json.
   • Spot-checks any entry marked "unverifiable" (does a quick second WebSearch).
   • Adjudicates conflicts where a corrected field looks suspicious.
   • Writes bibcheck_report.md with a summary table (Clean / Corrected / Unverifiable counts) and per-entry detail.
   • Concatenates the corrected_bib fields into corrected.bib.

Step 3b: Per-field mode

The point of this mode is isolation: each specialist agent should not see what the others are concluding. We achieve that by launching each specialist as a separate claude -p subprocess. Each subprocess is a fresh CLI session.

For each field in the list [title, year, journal, authors, volume_issue, pages, doi]:

1. Build a prompt for the specialist that contains:

   • The full input.bib content
   • The field name
   • Instructions: "For each entry in this .bib, check ONLY the {field}. Compare against the canonical paper found via WebSearch. Output JSON to stdout: a list of {key, status, original, corrected, reason}."

2. Launch the specialist via Bash:

   claude --dangerously-skip-permissions -p "<the specialist prompt>" > reports/field_<field>.json 2>reports/field_<field>.log
   

3. Run subprocesses in parallel up to --max-parallel. Wait for all to complete.

4. Final reviewer pass. A consolidator agent reads all field_*.json, joins by entry key, and produces:

   • bibcheck_report.md — disagreements across specialists are flagged (e.g., title-specialist says X, year-specialist disagrees about which paper is being cited)
   • corrected.bib — applies a field-level fix only if the relevant specialist flagged it AND the cross-field consensus supports the fix

Step 4: Present the result to the user

Show the user:

bibcheck complete.

  Clean:        N entries
  Corrected:    M entries (see bibcheck_report.md)
  Unverifiable: K entries (need human eyes)

Drop-in replacement: corrected.bib
Full audit:          bibcheck_report.md

Do not auto-overwrite the user's source .bib. They review, then move corrected.bib into place themselves.

Defaults and tone

• Default mode is per-citation unless the user asks for --by-field.
• Default --max-parallel is 8. Bump on request.
• This is a verification skill — never write citations from scratch. Only audit and correct.
• If a citation is genuinely unverifiable (paywalled, dead URL, ambiguous match), say so. Do not invent a DOI.

When to suggest the other mode

After per-citation completes, if 3+ entries came back as unverifiable, suggest the user re-run with --by-field for those specific entries — a field-specialist sometimes catches what a citation-generalist missed (e.g., a wrong year hiding behind a correct title).