ooligo
claude-skill

Draft a personal-injury demand letter with Claude

Difficulty
intermediate
Setup time
45min
For
paralegal · litigation-attorney · legal-ops
Legal Ops

Stack

A Claude Skill that turns a personal-injury case file — medical records, billing statements, wage-loss documentation, the police report, and the firm’s case notes — into a first-draft settlement demand letter. It builds a dated medical chronology with a record-page citation behind every entry, itemizes special damages from the bills, computes a general-damages range from the firm’s multiplier playbook, and assembles the letter from the firm’s template. Every figure in the draft traces to a source page; every claim the records do not support is listed under “insufficient data” instead of being written into the letter. The attorney edits and signs. The skill never sets the final demand number and never sends.

Attorney review is required. This skill drafts; it does not practice law. The general-damages range it produces is arithmetic on the firm’s own playbook, not a legal valuation. The attorney sets the demand figure, confirms every cited fact against the record, and owns the letter that goes out.

When to use

  • A plaintiff-side PI firm where paralegals assemble demand packages and a 6-12 page letter takes 3-6 hours of drafting on top of records review. The bottleneck is the first draft, not the legal judgment.
  • The firm has a written demand-letter template and a damages methodology (multiplier bands by injury severity, or a per-diem rate). The skill structures the draft around the firm’s method; it does not invent one.
  • Records are already collected and converted to text (OCR’d PDFs, or a records-retrieval export). The skill drafts from records that exist — it does not chase missing bills.

When NOT to use

  • Setting the demand number. The skill outputs a range from the multiplier playbook. The attorney sets the figure — the number is a strategic call that weighs venue, adjuster, liability strength, and policy limits the skill does not model.
  • Cases with disputed liability or comparative-fault complexity. When liability is the whole fight, the demand letter is an advocacy document the attorney drafts. The skill is for clear-liability soft-tissue-to-moderate cases where the work is assembling the record, not arguing causation.
  • Litigation filings. A demand letter is pre-suit. Complaints, motions, and discovery responses are court documents with their own rules — out of scope.
  • Medical opinion. The skill summarizes what the records say (diagnosis, treatment, provider impressions). It does not infer prognosis, causation, or permanency beyond what a provider wrote. Those are medical opinions; they come from the treating physician or a retained expert.
  • Records that contain PHI you cannot process under your agreements. Protected health information runs through this skill. Confirm your Claude deployment and your client-engagement terms cover it before any record goes in (see Watch-outs).

Setup

  1. Drop the bundle. Place apps/web/public/artifacts/demand-letter-drafter-claude-skill/SKILL.md into your Claude Code skills directory along with the references/ folder.
  2. Author the firm’s demand template. Replace the skeleton in references/1-demand-letter-template.md with the firm’s actual letter — section order, boilerplate, the demand-and-deadline paragraph, the signature block. The skill assembles into this template; it is the firm’s voice, not the skill’s.
  3. Encode the damages playbook. Fill references/2-damages-playbook.md with the firm’s methodology: multiplier bands by injury severity (the common range is 1.5-5× specials; severe or disfiguring injuries run higher), the per-diem rate if the firm uses one, and any jurisdiction-specific caps or rules the firm tracks. Without this file the skill has no basis for a general-damages range and will refuse to produce one.
  4. Set the chronology schema. references/3-medical-chronology-schema.md defines the columns (date of service, provider, treatment, billed amount, record page) and the citation format. Keep the citation format the firm uses so the attorney can verify against the same page references.
  5. Dry-run on three closed cases. Run the skill on three settled files where the demand is known. Compare its special-damages total to the actual specials, its chronology to the paralegal’s, and its general-damages range to what the firm demanded. Tune the playbook bands until the range brackets the historical demand.

What the skill does

Seven steps. The medical chronology is built before the damages math, because every dollar of specials and every line of the injuries narrative cites a chronology entry, and every chronology entry cites a record page.

  1. Index the record set. Ingest the records, bills, wage documentation, police report, and case notes. Build a page index so every later citation resolves to a specific document and page. Files that are unreadable (failed OCR, image-only) are listed, not silently skipped.
  2. Build the dated medical chronology. One row per date of service: provider, complaint, treatment, billed amount, and the record page it came from. Gaps in treatment are flagged (a 6-week gap between the ER visit and the first follow-up is a fact the adjuster will use; the attorney should know it before the letter goes out, not after).
  3. Itemize special damages. Total the medical bills by provider, add documented wage loss, and add out-of-pocket costs. Each line cites its bill page. The skill flags bills referenced in the records but missing from the file, and liens or balances it cannot reconcile — these go to the attorney as “confirm before sending,” not into the total as a guess.
  4. Draft the liability and facts narrative. From the police report and case notes, draft the how-it-happened section. Statements the report does not support are flagged, not written. Where the report and the client’s account differ, the skill surfaces the conflict rather than picking one.
  5. Draft the injuries and treatment narrative. Grounded in the chronology — diagnosis, course of treatment, provider impressions, current status as the records state it. No prognosis or permanency language unless a provider wrote it; if the firm wants a permanency argument, that is flagged as needing the treating physician’s statement.
  6. Compute the general-damages range. Apply the playbook’s multiplier band to the specials (or the per-diem method, per the playbook). Output is a range with the band shown — “$X-$Y at 2.5-4× specials of $Z” — explicitly labelled a starting point. The skill does not pick a point in the range.
  7. Assemble the draft and the review checklist. Fill the firm’s template. Produce a paired review checklist: every figure with its source citation, every flagged gap, every “insufficient data” item, and the response-deadline line left as a placeholder for the attorney to set. The letter is a draft; the checklist is how the attorney verifies it in minutes instead of re-reading the file.

Cost reality

  • LLM tokens — a full case file is 40-120k input tokens (records, bills, report) and 4-8k output (chronology + draft). At Claude Sonnet rates that is roughly $0.30-0.90 per demand; on a heavy record set with Opus, $1.50-4. Pennies-to-dollars against the drafting hours it offsets.
  • Paralegal / attorney time — the win. A demand package is commonly cited at 3-6 hours of paralegal drafting. The skill produces the chronology and first draft in minutes; the paralegal verifies and fills gaps, the attorney edits and sets the number. The realistic saving is the drafting half, not the review half — call it 2-4 hours per demand.
  • Setup time — 45 minutes plus the firm’s template and playbook authoring (a one-time hour or two that pays back across every case).

Success metric

  • Draft-to-attorney time — wall-clock from “records collected” to “draft on the attorney’s desk.” Should fall from 1-2 days (in a paralegal’s queue) to same-day.
  • Specials reconciliation rate — share of demands where the skill’s special-damages total matches the verified total without correction. Aim above 90%; misses point at a records-indexing or bill-parsing gap, not a reason to abandon the draft.
  • Attorney edit depth — how much of the draft survives to the signed letter. Track it; if the narrative is being rewritten wholesale, the template or the case-selection criteria need tightening, not the skill.

vs alternatives

  • vs EvenUp Express Demands and similar managed services. EvenUp pairs AI drafting with human drafters and delivers a finished package; marketed turnaround is 1-24 hours, though firms report multi-day delivery in practice. The trade is control and data residency: the managed service holds your PHI and owns the playbook; this skill runs on your own Claude with your template and your damages method, and the draft never leaves your environment. Use the managed service when you want the package handed back finished and are comfortable with the data and turnaround terms; use the skill when you want the draft in-house, today, on your own methodology.
  • vs Eve and full case-workup platforms. Eve and the litigation-AI platforms work the whole case, not just the demand. If the firm wants case valuation, treatment-gap analytics, and litigation prep as a suite, that is a platform purchase. The skill is one step of that pipeline — the demand draft — for firms not ready to buy the platform.
  • vs the paralegal drafting from scratch. The status quo. It produces the firm’s voice and judgment but is the slowest path and the one that varies most by who drafted it. The skill standardizes the first draft and the citation discipline; the paralegal’s judgment moves to verification and the edge cases.

Watch-outs

  • Hallucinated medical facts or figures. A demand letter with an invented diagnosis or an inflated bill is a credibility loss the adjuster will exploit, and a sanctions risk if it reaches a filing. Guard: every chronology entry, every special-damages line, and every factual claim cites a record page; anything the skill cannot cite goes to the “insufficient data” list, not into the letter. The attorney verifies against the cited pages.
  • The multiplier range read as a valuation. The general-damages band is arithmetic on the firm’s playbook, blind to venue, adjuster history, liability strength, and policy limits. Guard: the output is a labelled range with the band shown, never a single number; the attorney sets the demand.
  • PHI exposure. The skill processes medical records — protected health information. Guard: confirm the Claude deployment’s data terms (zero-retention / no-training posture, and a BAA where your compliance program requires one) and your client-engagement terms cover AI processing before any record goes in. Run on a deployment that meets the firm’s HIPAA program; do not paste records into a consumer endpoint.
  • Treatment-gap and liability conflicts buried. A draft that reads clean but omits a treatment gap or a report-vs-client conflict sets the attorney up to be surprised by the adjuster. Guard: gaps and conflicts are surfaced in the review checklist as explicit flags, not smoothed over in the narrative.
  • Missing bills counted as zero. If a provider’s bill is referenced but absent from the file, totaling only what is present understates specials and the demand. Guard: referenced-but-missing bills are flagged “confirm before sending” and excluded from the total rather than guessed; the paralegal retrieves them before the demand is finalized.
  • Stale or jurisdiction-wrong playbook. Damages caps, fee rules, and pre-suit notice requirements vary by jurisdiction and change. Guard: the playbook file is the single source the skill cites for its bands; review it against current rules per matter, and treat caps and notice requirements as attorney-confirmed, not skill-asserted.

Stack

The bundle lives at apps/web/public/artifacts/demand-letter-drafter-claude-skill/:

  • SKILL.md — the skill definition
  • references/1-demand-letter-template.md — the firm’s demand-letter skeleton to replace with the firm’s actual template
  • references/2-damages-playbook.md — the firm’s damages methodology (multiplier bands, per-diem rate, jurisdiction notes)
  • references/3-medical-chronology-schema.md — the chronology table schema and citation format

Tools: Claude. For the structured-extraction pattern behind the chronology step, see contract data extraction. Adjacent tools in the PI cluster: EvenUp, Eve.

Files in this artifact

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