using-practice

using-practice is a skill for Claude Code, Codex from JanYork/llm-wiki-cli. It costs 44 tokens per session (650 once invoked), scanned A, original, Apache-2.0.

A procedure for saving and recovering assessed learning records, such as papers, attempts, grades, flashcards, review schedules, mistakes, and evidence of progress. Flashcards are treated as practice items.

In plain words
What is it for?
Use it when creating or recovering durable practice work, grading records, flashcards, scheduled reviews, mistake history, or goal evidence.
Why use it?
It preserves work across lost context and supports later review, rather than leaving practice results only in the current conversation.

Skill for Claude CodeCodex

Part of the claude-lwc plugin — 7 skills, 2 hooks, 1 MCP server shipped together

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.

agentmods
npx agentmods add skills/janyork/llm-wiki-cli/using-practice
Any agent
npx skills add JanYork/llm-wiki-cli --skill using-practice
Clone the repo
git clone --depth 1 https://github.com/JanYork/llm-wiki-cli

Made for: Claude Code, Codex.

Or install claude-lwc, the plugin that ships this one along with the rest of its 7 skills, 2 hooks, 1 MCP server.

Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 650 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00044 $0.00650
Opus 5 $0.00022 $0.00325
Sonnet 5 $0.00009 $0.00130
Haiku 4.5 $0.00004 $0.00065

Measured 3d ago against content hash ba1997757ebb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

using-practice 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 3d 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.

integrations/claude-lwc/skills/using-practice/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Using Practice

Practice preserves assessed work across context loss. Flashcards are Practice items. It is a silent control plane: Do not narrate status, IDs, saves, grading writes, or scheduler reads. Show only questions, answers, feedback, and meaningful progress.

Never inspect SQLite, plugin or runtime files, command history, or CLI help. Never reread Skill files or text-search for state. Use only the public commands here.

Enter or recover

Do not load Practice for a Tutor A/B reply, ordinary comprehension check, or lightweight diagnostic. Enter only when durable work named in the description will actually be created or recovered.

  1. Inspect LWC_READINESS.practice. If disabled, explain the durable local-data boundary and ask once before lwc --scope global config set --practice enabled; explicit enablement is consent. Enabling does not download; first status may lazily install the pinned, hash-verified runtime.
  2. Run lwc practice status once on entry, lost identity, compaction, or a pending/revision/owner error. Otherwise cache exact attempt/session/owner/latest revision; do not repeat status.
  3. Recover an in-progress attempt and saved responses before creating another. Use a new stable request_id per operation; retry that operation with the same request ID, owner, and if_revision.
  4. Cross-machine recovery requires the latest successful Sync receipt and exact-revision takeover; the old owner must stop writing.

Durable flow

  1. Resolve exact typed subject, goal, book, bank, set, paper, and item IDs. Precedence is explicit plan target, goal bank, then subject default. Invalid higher-precedence targets fail; never fuzzy-match.
  2. Generated items stay draft until prompt, answer, rubric, and exact source ref are re-read and verified. Formal papers use verified revisions and report shortages without weakening the blueprint.
  3. Start or resume the exact attempt. Save every response immediately with owner, request ID, and if_revision; submission freezes already durable responses. Abandonment preserves history. v1 accepts only choice, text, numeric, and flashcard self-rating; reject every other form.
  4. Grade objective items deterministically. Grade subjective items against the frozen rubric and store concise rationale, confidence, method, and review state. Learner overrides append history.
  5. Let the pinned scheduler compute review state and due dates. Respect time budget and retention target, expose deferred debt, and never edit due dates or silently control review.

Read the full file on GitHub · 57 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

  1. 3d ago First seen · 57 lines · 44 tokens per session scan A ba1997757ebb

Subscribe to this mod's changes

using-practice is a skill published in the GitHub repository JanYork/llm-wiki-cli (48 stars, last pushed 7d ago), licensed Apache-2.0. It adds 44 tokens to every session and 650 once invoked, about $0.0002 per session on Opus 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 2026-08-30.

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