Skip to main content

Billing timekeeper agent

A calendar trace is not billable time.

A billing timekeeper agent helps legal-service professionals prepare source-linked time entries and reviewed prebill records. It can suggest narratives and task codes after the worker confirms the actual service, duration and matter. Werkon would validate capture, review and correction together; professionals and billing owners retain billability, rates, confidentiality and approval of fees.

Establish the work before proposing an entry

Approved timers, tasks, documents, communications and calendars provide activity signals, not proof of billable work. Ask the worker to confirm the service, date, duration, matter and participants. Check overlaps, duplicates, idle spans, interruptions and unsupported reconstruction without hidden surveillance.

Preserve source and event times, client guidelines, engagement terms and confidentiality boundaries. Actual time, elapsed time, captured time and billable time differ. Faster work by a tool cannot justify inflated hours or turn saved effort into chargeable time.

Keep billing authority with the responsible people

Use approved rates, increments, caps, task codes, expense rules and narrative restrictions. Route entries to the responsible professional and billing owners, retaining splits, transfers, write-downs, rejections and reasons. Ethical walls and privilege still apply to source-linked drafts.

Create only reviewed prebill or invoice data and retain e-billing validation and client disposition. A valid LEDES file does not prove an accurate or ethical fee. Corrections remain visible beside the original attestation; invoice issuance and movement of client money require separate authority.

Timekeeping job boundary

Capture the activity. Keep billability accountable.

A trace can suggest when work happened, but only the person who did the work and the professionals responsible for the matter can support the time and decide its billing treatment.

01

Matter and billing scope

Register provider, client, matter and engagement; worker identity and role; jurisdiction and applicable conduct rules; current rate or alternative-fee arrangement; client billing guidelines, budget and taxonomy; ethical walls, confidentiality, approval chain, notice, consent, retention and prohibited capture before activity enters the workflow.

Required evidence: Provider, client, matter and engagement identifiers, worker and role, jurisdiction, effective rate and fee arrangement, budget and guideline versions, task and activity taxonomy, ethical-wall result, matter team and billing owner, review and invoice authority, notice, consent, purpose, retention and expiry.

02

Minimum work evidence

Accept user-entered starts, stops and notes plus only approved task, document, communication, calendar and event metadata; preserve independent timestamps and source references; avoid content or surveillance that is unnecessary; identify overlaps and gaps; and never infer billable work from presence, open software or a meeting invitation alone.

Required evidence: Activity candidate and source type, source identifier and digest, event and observation times, worker and participants, task or artifact reference, timer changes, interruption and overlap, capture permission and purpose, excluded content, confidence, missing support and deletion schedule.

03

Worker-confirmed entry packet

Ask the worker to confirm actual date, duration, matter, service and participants; apply deterministic increments, overlaps and guideline gates; propose source-linked task, activity and minimal narrative candidates; show conflicts, sensitive terms and alternatives; and keep elapsed, actual, captured, billable and written-down time distinct.

Required evidence: Worker attestation and time, actual date and duration, matter and service, participants, source links, overlap disposition, increment and rounding result, task and activity candidates, narrative and redaction flags, nonbillable or pro bono state, guideline results, exception, alternatives and revision history.

04

Prebill and client disposition

Route confirmed entries to responsible professionals and billing owners; determine billability, rate, fee reasonableness, write-down, split or transfer with reasons; create a reviewed prebill; require separate invoice approval; export only the approved data; retain validation, rejection, appeal, adjustment and payment references; and correct without erasing history.

Required evidence: Matter and billing reviewers, professional responsibility and delegation, billable decision and reason, rate and fee check, adjustment and attribution, prebill version and approval, invoice identifier and digest, e-billing format and validation, client disposition and reason, appeal, credit, payment reference, correction and audit trail.

Activity-to-disposition path

Do not let passive telemetry become a fee.

Each transition needs new evidence and authority. The path preserves what the system observed, what the worker attested, what the professional approved and what the client accepted.

  1. 01

    Define permission and rules

    Confirm client and matter access, engagement and fee basis, worker role, approved activity sources, notice and consent, billing guidelines, current rates, budget, task and activity codes, narrative restrictions, review authority, retention and correction before capture begins.

    Owner
    Matter, billing, professional-responsibility, privacy, and worker owners
    Evidence
    Matter-opening and engagement records, team and ethical-wall status, rate and alternative-fee schedule, client guidelines, budget, taxonomy and narrative rules, approved sources and fields, notice, consent, retention, access, reviewer map and stop conditions.
  2. 02

    Collect activity candidates

    Record only permitted user actions and metadata with source and event times, group related signals without inspecting unnecessary content, preserve offline and manual entry paths, surface overlaps and uncertainty and expire unsupported candidates rather than silently turning them into time.

    Owner
    Worker-controlled capture with privacy and security controls
    Evidence
    Source events and digests, timestamps, worker and matter candidates, artifact and task identifiers, timer controls, permitted fields, interruption and overlap, capture confidence, excluded content, candidate age, manual addition and worker deletion or challenge.
  3. 03

    Confirm actual work and prepare entry

    Have the worker select the correct matter, describe the actual service, attest duration and participants, split multi-matter work and explain late reconstruction; then apply deterministic time and guideline rules and propose codes and a minimal narrative with source links, alternatives and warnings.

    Owner
    Individual worker with deterministic validation and bounded drafting support
    Evidence
    Worker attestation, actual duration and date, matter, service and participants, reconstruction reason, split basis, source support, overlap decision, increment and rounding, code candidates, narrative versions, sensitive-term warning, guideline results and unresolved questions.
  4. 04

    Review billability and prebill

    Have responsible professionals and billing owners review service, duration, matter, rate, fee arrangement, reasonableness, client guidelines, budget and narrative; record approve, reject, write-down, transfer, split or nonbillable disposition with reason; and freeze the reviewed prebill version.

    Owner
    Responsible professional, matter owner, and authorized billing reviewer
    Evidence
    Reviewer and role, entry basis, professional and guideline checks, rate and budget, billable decision, adjustment amount and reason, matter transfer, narrative edit, exception approval, prebill totals, version, sign-off and expiry.
  5. 05

    Transfer invoice and reconcile disposition

    Create only the approved invoice record or data exchange, validate schema and totals, transmit through the authorized billing path, retain client acknowledgment, rejection, adjustment and appeal, reconcile accounting and payment references separately and preserve credits and corrections without rewriting time history.

    Owner
    Authorized billing, finance, client, and records owners
    Evidence
    Invoice and prebill identifiers, entry set and digest, format and schema version, totals and currency, transmission identity and time, client validation and disposition, rejection reason, adjustment, appeal, credit, accounting reference, payment reference, correction and retained history.

Authority model

Let code check entries. Keep fee judgment professional.

Time arithmetic, narrative drafting and professional fee authority are separate responsibilities. The agent supports capture and review without deciding what a client owes.

01

Deterministic time and billing controls

Code should own identifiers, event and source times, duration arithmetic, overlap, increment, date, currency, rate lookup, cap, budget, taxonomy, rule version, role, prebill totals, schema, transfer scope, idempotency, acknowledgment and correction checks.

  • Provider, client, matter, engagement, worker and role binding; ethical-wall and team access; effective guideline, rate, fee arrangement, budget, task, activity, narrative and retention versions
  • Start and stop arithmetic, interruption, overlap, split, time zone, work date, duration, minimum increment and rounding under approved rules, with original and adjusted values retained
  • Required field, task and activity code, rate, cap, budget, duplicate, block-billing, narrative term, attachment, prebill-total and invoice-schema checks without deciding substance
  • Reviewer and invoice role, approval expiry, entry and invoice digest, transfer scope, duplicate prevention, client acknowledgment, adjustment arithmetic, credit, accounting reference, visible supersession and export completeness
02

Bounded coding and narrative support

A model may propose source-linked matter, code and concise narrative candidates. It cannot infer unobserved work, choose billability, reveal protected information, apply a fee, approve an entry, issue an invoice or predict payment.

  • Matter and activity candidates from permitted metadata with exact source references, alternatives, confidence, ethical-wall and access checks, ambiguity and abstention
  • Task and activity code candidates against the client's versioned taxonomy with evidence, alternatives and rule results, without treating a standard code as proof of work or approval
  • Minimal narrative candidates grounded in worker-confirmed service and permitted facts, with privileged, confidential, personal, settlement, strategy and unnecessary-detail warnings and a safe manual path
  • Review summaries of overlaps, late entries, guideline conflicts, budget effects, repeated descriptions and prior dispositions that cannot score worker value, invent intent or learn silently from write-downs
03

Worker, professional, and client authority

Named people attest actual work, determine legal and professional context, decide billability and fee treatment, approve prebill and invoice, resolve client dispositions and correct the record.

  • Worker confirmation of service, actual duration, date, matter, participants, interruption, split, travel, offline work, late reconstruction and source sufficiency
  • Matter access, conflicts and ethical walls, privilege and confidentiality, legal substance, client benefit, staffing, supervision, professional responsibility and narrative sufficiency
  • Billability, fee reasonableness, rate and arrangement, write-down, split, transfer, pro bono or nonbillable status, expense, budget exception, prebill and invoice approval and client communication
  • Client guideline interpretation, invoice rejection, appeal, adjustment, credit and complaint, accounting and payment treatment, access and provider approval, incident response, expansion, rollback and retirement

Timekeeping-system components

Build an entry that can explain its own history.

Activity signals, worker memory, matter rules, rates, prebills and client systems change independently. Four components preserve their source and authority.

01

Matter and billing-rule registry

Version provider, client, matter and engagement; matter team and ethical walls; worker roles; fee arrangement, rates, budget and guidelines; task and activity taxonomies; narrative restrictions; reviewer, invoice, retention and correction authorities.

Operating contract: Access to the firm is not access to the matter, prior rate is not current rate, budget is not approval, a client code is not legal substance, one guideline is not every client, engagement terms govern before software defaults and format validation is not fee reasonableness.

02

Activity evidence and attestation ledger

Preserve permitted timer, task, artifact, communication, calendar and event metadata with source and event times, worker control, overlap and interruption; bind worker-confirmed service, duration, date, matter and participants; retain changes and challenges.

Operating contract: Presence is not work, open application is not attention, calendar duration is not actual duration, recipient is not the correct matter, silence is not consent, reconstruction is not contemporaneous evidence and surveillance is not timekeeping accuracy.

03

Entry and prebill review engine

Apply deterministic time and guideline checks, propose bounded codes and narratives, preserve source and worker attestation, route professional and billing review and retain every approval, rejection, write-down, transfer, split, reason and prebill version.

Operating contract: Captured is not actual, actual is not billable, efficient work cannot become fictional hours, code-valid is not reasonable, a plausible narrative is not proof, reviewer silence is not approval and adjusted time never erases the original entry.

04

Invoice and client-disposition ledger

Create approved invoice data, validate format and totals, transfer through scoped billing tools, retain client acceptance, rejection, adjustment, appeal and credit and reconcile accounting and payment references separately with visible corrections.

Operating contract: Prebill is not invoice, invoice is not client acceptance, schema-valid is not accurate, accepted is not paid, payment is not final fee approval, accounting entry is not cash and a correction must not rewrite worker attestation or prior client disposition.

Delivery path

Prove one matter workflow before observing more work.

Time capture can create privacy and professional risk before it creates value. Begin with one willing team, one engagement and one client-approved billing rule set.

  1. 01

    Observe the current billing cycle

    Follow matter setup, activity and timer habits, late reconstruction, guideline and rate lookup, code and narrative preparation, professional review, write-down, prebill, invoice transfer, client rejection, appeal, credit, payment reference, correction, staff effort, provider cost, incidents and known harm.

  2. 02

    Define evidence and permissions

    Name matter access, capture source, notice, consent, event, actual duration, service, task, activity, narrative, rate, fee, budget, billability, reviewer, prebill, invoice, client disposition, correction, retention, worker challenge and stop states and owners.

  3. 03

    Run a shadow cycle

    Replay ordinary, offline, interrupted, multi-matter, overlapping, travel, late, fixed-fee, pro bono, internal, ethical-wall, sensitive-narrative, wrong-rate, budget, duplicate, rejected-invoice, outage and hostile-content cases without creating invoices, then compare with worker and reviewer records.

  4. 04

    Release one bounded capture path

    Limit matters, workers, sources, fields, rule sets and billing tools; make worker confirmation mandatory; keep professional billability and invoice approval human; require minimal narratives, scoped credentials, receipts, worker correction, manual bypass, exception ownership and independent stop authority.

  5. 05

    Review after client disposition

    Compare contemporaneous support, worker agreement, code and narrative changes, professional write-downs, client rejections and appeals, prebill and invoice corrections, staff impact, privacy, security, provider and operating cost and harm before adding matters, sources or automation.

Timekeeping safeguards

Six controls before captured time reaches a prebill.

The strongest controls prevent cross-matter leakage, unsupported reconstruction, inflated duration, sensitive narratives, hidden worker monitoring and invoice states that appear more final than they are.

Client, matter, worker, and engagement
Bind every candidate and entry to stable provider, client, matter, engagement, worker and role identifiers; enforce current team and ethical-wall access; version fee and billing terms; expire closed or transferred matters; and never use name similarity to cross a boundary.
Actual duration and source integrity
Preserve event and source times, timer changes, interruption and overlap; require worker confirmation; separate elapsed, actual, captured, billable and adjusted time; retain late-entry reasons; reject unsupported reconstruction; and never infer labor from mere presence or software telemetry.
Rate, guideline, taxonomy, and arithmetic
Version effective rate, fee arrangement, increment, rounding, cap, budget, task, activity, expense and narrative rules; run exact duration and total arithmetic; show original and adjusted values; and keep structural standards downstream of professional fee judgment.
Confidentiality and minimal narrative
Use the minimum permitted metadata and narrative, isolate clients and matters, block unapproved content, protect privilege and personal data, warn on sensitive terms, keep source content out of external tools unless approved and provide a complete manual and redaction path.
Professional review and invoice separation
Separate record, attest, classify, review, adjust, approve prebill, issue invoice, appeal, credit and account capabilities; verify delegation, require reasoned changes, freeze approved versions, scope exports, use idempotency and retain client and accounting receipts without moving money.
Worker rights, security, retention, and recovery
Provide clear notice and controls, minimize surveillance, support access and challenge, protect credentials and data, monitor exports and administration, test backup and restore, reconcile after outages, retain by engagement and qualified policy, delete safely and revoke providers on exit.

Outcome proof

Measure supported entries, not hours captured.

More recorded time can be a worse outcome if evidence is weak, narratives leak information or reviewers write it down. Proof follows each eligible activity from source through worker attestation, professional review and client disposition.

Baseline

  • Activities by worker, client, matter, engagement, source, event time, actual duration, entry age, task and activity code, narrative, billable disposition, rate, adjustment, prebill, invoice, client disposition, credit, correction and known payment reference
  • Evidence by source and digest, permitted field, timer and event record, worker attestation, overlap and split, guideline and rate version, code and narrative candidates, reviewer, reason, prebill and invoice digest, schema result, client response and correction history
  • Manual capture, reconstruction, matter selection, coding, narrative drafting, guideline lookup, review, adjustment, prebill, invoice transfer, rejection handling, appeal, credit, accounting and correction effort, queue age, interruption, provider fees and operating cost
  • Wrong client, matter, worker, date, duration, overlap, code, narrative, rate, adjustment, approval, invoice, client disposition, credit, access, retention, recovery, surveillance, confidentiality, privilege, professional-responsibility and financial harm

Outcome evidence

  • More eligible entries reach workers and reviewers with timely source references, actual-duration confirmation, current engagement and billing rules, minimal narratives, visible alternatives and owned exceptions while fee authority remains explicit
  • Fewer cross-matter, duplicate, overlapping, late, unsupported, wrong-rate, guideline-conflicting or confidentiality-risk entries reach prebill, and every adjustment and transfer retains reason and attribution
  • Workers and reviewers spend less avoidable time reconstructing, coding and correcting entries while retaining clear confirm, edit, delete, split, reject, write down, transfer, approve, challenge and appeal authority, measured by matter and activity segment
  • Comparable cycles expose capture coverage, worker agreement, rule and code accuracy, narrative edits, professional write-down, client rejection, correction, staff effort, worker impact, incidents, provider cost and harm without assuming utilization, realization, collection or revenue

Guardrails

  • Client, matter, engagement, worker, source, event, duration, rule, rate, reviewer, prebill, invoice or client disposition is misbound; original evidence or attestation is lost; time is silently changed; or data crosses matter, ethical-wall, role or purpose boundaries
  • Presence or app activity appears as work, calendar length appears as actual duration, overlapping time is double counted, offline work is fabricated, an AI efficiency becomes fictional hours, a standard code appears as billability or a sensitive narrative exposes protected information
  • The agent decides legal substance, billability, fee reasonableness, staffing value, write-down or invoice approval; captures workers covertly; applies an unapproved rate; issues a bill; moves client money; suppresses conflicts or learns silently from reviewer or client adjustments
  • Duplicate invoice transfer occurs, rejection appears accepted, adjustment or credit is lost, payment appears final, worker cannot challenge capture, client disposition cannot be reconstructed, restore changes history, access survives matter or role exit or expansion precedes client evidence

Timekeeping fit

Use this pattern when one entry can survive client review.

Good reason to begin

  • The organization can bound one client and engagement, identify approved activity sources and billing rules and name worker, matter, conflicts, privacy, professional, billing, invoice, client-disposition, accounting, correction, cost, harm and stop owners.
  • Matter, worker, activity, rule, rate, budget, prebill, invoice and client-disposition records retain stable identifiers, timestamps, versions and provenance; exact duration and total arithmetic are inspectable; and billing tools support scoped transfer, idempotency and receipts.
  • Representative ordinary, offline, interrupted, multi-matter, overlapping, late, fixed-fee, pro bono, internal, ethical-wall, sensitive-narrative, wrong-rate, budget, rejection, appeal and outage cases plus worker and reviewer dispositions exist for shadow evaluation.
  • Workers and reviewers can abstain, edit or delete candidates, preserve manual entry, challenge surveillance or narrative, reject billability, revoke credentials, reconcile after outages, correct visibly, export evidence, roll back versions and retire the agent safely.

Resolve before beginning

  • Client, matter, engagement, ethical-wall, source permission, worker notice, fee arrangement, billing guidelines, rate, taxonomy, professional responsibility, invoice, client disposition, accounting, retention or correction ownership is unclear or disputed.
  • Activity sources cannot be scoped, worker confirmation is unavailable, matter access is unreliable, rate and guideline versions are uncontrolled, narratives expose unnecessary information, billing tools lack idempotency and receipts or no responsible professional can review entries.
  • The desired first step permits covert surveillance, automatic time reconstruction, inflated hours, model-determined billability or fee reasonableness, cross-matter inference, unreviewed narratives, autonomous prebill or invoice approval, client-money movement or silent learning from write-downs.
  • The business case depends on unverified professional compliance, perfect capture, reduced write-downs, utilization, realization, collection, revenue, staff reduction, exact savings, implementation time, payment speed or another financial or workforce outcome.

Source basis

Sources behind the control model.

  • 01

    American Bar Association

    Model Rule 1.5: Fees

    The ABA model rule addresses fee and expense reasonableness and communication of the fee basis or rate. The ABA states that its Model Rules serve as models and jurisdictions modify them. The page is not every jurisdiction's binding rule and does not determine that a particular time entry, rate, expense or invoice is reasonable or permitted.

  • 02

    American Bar Association

    Formal Opinion 512, Generative Artificial Intelligence Tools

    The July 2024 opinion discusses lawyers' competence, confidentiality, supervision, communication and fee duties when using generative AI, including actual time for hourly billing and advance agreement on new charge terms. It is an ABA ethics opinion, not universal law, and does not approve an agent, bill, fee, disclosure or provider.

  • 03

    LEDES Oversight Committee

    Legal Electronic Data Exchange Standards

    The voluntary industry body maintains open formats and data elements for exchanging legal billing and related information, including task, activity, expense and timekeeper classifications. A LEDES or UTBMS-valid record establishes structure only; it does not prove work occurred, authorize a rate, protect privilege, satisfy an engagement or make a fee reasonable.

  • 04

    Solicitors Regulation Authority

    Transparency in price and service

    The current guidance explains price-publication and client-cost-information expectations for the specified services and England and Wales firms within the SRA regime. It does not prescribe every pricing model, apply to every legal provider or jurisdiction, approve a time entry or invoice, or establish compliance by software use.

[ WORKFLOW / SYSTEMS AUDIT ]
THE FIRST ENGAGEMENT

Start with one real workflow

A Systems Audit is the usual starting point. If the opportunity is already clear, we can move directly into a focused build.

Show Us the WorkflowStart with the free automation readiness checklist

OBSERVEQUANTIFYDECIDEBUILD

Continue with the work

Choose the next useful path.

Stay with the operating question. The technology can wait until the work is clear.

01

Explore governed agent patterns

Compare legal timekeeping with financial, accounting and wider operational patterns before choosing one exact matter boundary.

Open path02

Preserve legal professional authority

Connect engagement, matter and confidentiality scope with qualified legal work, client communication, billing, records and correction.

Open path03

Control finance and accounting flow

Keep approved records, exact calculations, posting authority, reconciliation and close support explicit downstream of legal billing review.

Open path04

Design bounded automation

Choose tasks from observed work, preserve exceptions and recovery, measure hidden human load and keep permissions outside the model.

Open path