What is matter-update?

A workflow for recording a dated development in a legal matter and updating its portfolio entry. It captures events such as status changes, risk reassessments, deadline changes, and settlement-authority changes.

Use it to log a new development, change a matter’s status or risk, move a deadline, or reclassify materiality. It appends the event to the history file and refreshes the portfolio row.

It makes routine matter updates quick and consistent instead of leaving the portfolio out of date. It preserves a chronological history while updating the fields used for rollups.

matter-update — Skill for Claude Code by uk-agents/uk-legal-plugins

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add uk-agents/uk-legal-plugins --skill matter-update

Clone the repo

git clone --depth 1 https://github.com/uk-agents/uk-legal-plugins

Made for: Claude Code.

Or install litigation-legal-uk, the plugin that ships this one along with the rest of its 16 skills, 1 agent.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/uk-agents/uk-legal-plugins/matter-update/github.svg)](https://agentmods.dev/skills/uk-agents/uk-legal-plugins/matter-update)

Your own site

<a href="https://agentmods.dev/skills/uk-agents/uk-legal-plugins/matter-update"><img src="https://agentmods.dev/badge/skills/uk-agents/uk-legal-plugins/matter-update/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/uk-agents/uk-legal-plugins/matter-update"><img src="https://agentmods.dev/badge/skills/uk-agents/uk-legal-plugins/matter-update.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,063 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00066	$0.02063
Opus 5.5	$0.00026	$0.00825
Sonnet 5.5	$0.00013	$0.00413
Haiku 4.5	$0.00007	$0.00206

Measured 1mo ago against content hash ab6a53be3f74, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

matter-update scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

litigation-legal-uk/skills/matter-update/SKILL.md · 154 lines

How it starts

The opening of the file, as written. The whole thing — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/matter-update

Follow the workflow and reference below.
Confirm slug exists in ~/.claude/plugins/config/uk-legal-plugins/litigation-legal-uk/matters/ and _log.yaml.
Prompt for event type, date (default today), summary, and any log field updates (risk change, status change, next deadline shift, materiality reclassification).
Append dated entry to ~/.claude/plugins/config/uk-legal-plugins/litigation-legal-uk/matters/[slug]/history.md.
Update _log.yaml — set last_updated to today, apply any field updates.
Confirm.

Matter Update

Purpose

The portfolio only stays useful if it stays current. This skill makes logging an update cheap — two minutes of structured capture, no freeform drift.

Load context

~/.claude/plugins/config/uk-legal-plugins/litigation-legal-uk/matters/_log.yaml — find the row
~/.claude/plugins/config/uk-legal-plugins/litigation-legal-uk/matters/[slug]/history.md — append target
~/.claude/plugins/config/uk-legal-plugins/litigation-legal-uk/matters/[slug]/matter.md — reference (don't rewrite)
~/.claude/plugins/config/uk-legal-plugins/litigation-legal-uk/CLAUDE.md — risk calibration (if re-assessing risk)

Conflicts gate — unbypassable. Before logging an update, check _log.yaml for the matter slug. If the matter is not in _log.yaml, refuse and route:

"I don't see [matter slug] in the matter log. Run /litigation-legal-uk:matter-intake first so the conflicts check runs and the matter workspace exists. I won't append history to an unmanaged matter — the conflicts check is the gate, and there's no history.md to append to until the matter is intaken."

Input

Slug (required). If not provided, ask — with a short list of recently updated matters to pick from.

The update

1. Event type

Offer categories:

Procedural — application filed/received, order issued, hearing held, CPR deadline set or confirmed
Disclosure — disclosure given/received, inspection request, CPR 31.17 third-party disclosure application
Substantive — new facts, key document surfaced, ruling on merits
Strategy — posture shift, settlement offer made/received, authority update
Risk re-assessment — severity or likelihood changed
Stakeholder — new person looped in, external solicitors change, barrister instructed or changed
Administrative — engagement letter executed, budget adjusted, hold refreshed, court fee paid
Pre-action — pre-action protocol steps, letter before action sent/received, protocol compliance completed

Read the full file on GitHub · 154 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago First seen · 154 lines · 66 tokens per session scan A ab6a53be3f74

Subscribe to this mod's changes

matter-update is a skill published in the GitHub repository uk-agents/uk-legal-plugins (14 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 66 tokens to every session and 2,063 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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