kaizen-improvement

kaizen-improvement is a skill for Claude Code from Jamie-BitFlight/claude_skills. It costs 74 tokens per session (1,053 once invoked), scanned A, original, MIT.

A workflow for turning analysis of coding-agent transcripts into concrete improvements to hooks, prompts, skills, project instructions, and automation.

In plain words
What is it for?
Use it after transcript analysis to propose hooks, refine agent prompts, patch skills, update CLAUDE.md files, or automate repeated work.
Why use it?
It helps convert repeated mistakes and inefficient behavior into specific changes instead of leaving findings as observations.

Skill for Claude Code

Written for Claude Code: PreToolUse hook event. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

Part of the agentskill-kaizen plugin — 4 skills, 4 commands, 2 agents shipped together

Good fit Use it after transcript analysis to propose hooks, refine agent prompts, patch skills, update CLAUDE.md files, or automate repeated work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jamie-bitflight/claude_skills/kaizen-improvement
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 Jamie-BitFlight/claude_skills --skill kaizen-improvement
Clone the repo
git clone --depth 1 https://github.com/Jamie-BitFlight/claude_skills

Made for: Claude Code.

Or install agentskill-kaizen, the plugin that ships this one along with the rest of its 4 skills, 4 commands, 2 agents.

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.

agentmods badge for kaizen-improvement

README.md
[![agentmods](https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/kaizen-improvement/github.svg)](https://agentmods.dev/skills/jamie-bitflight/claude_skills/kaizen-improvement)
Your own site
<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/kaizen-improvement"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/kaizen-improvement/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.

agentmods 80×15 button for kaizen-improvement

Your own site · 80×15
<a href="https://agentmods.dev/skills/jamie-bitflight/claude_skills/kaizen-improvement"><img src="https://agentmods.dev/badge/skills/jamie-bitflight/claude_skills/kaizen-improvement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,053 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00074 $0.01053
Opus 5.5 $0.00030 $0.00421
Sonnet 5.5 $0.00015 $0.00211
Haiku 4.5 $0.00007 $0.00105

Measured 22d ago against content hash e8c9af6ee9e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

kaizen-improvement 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 22d 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.

plugins/agentskill-kaizen/skills/kaizen-improvement/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Kaizen Improvement

Transform analysis findings from .planning/kaizen/ into actionable improvements — hooks, agent patches, skill refinements, CLAUDE.md updates, and automation scripts.

Prerequisite: Analysis findings must exist in .planning/kaizen/ (generated by the transcript-analysis skill).

Proposal Admission

Keep the audit's full set of findings. Turn a finding into a hook, agent, skill, CLAUDE.md, or script proposal only when it advances an intended outcome or an applicable contract. Each selected proposal records:

  • the affected intended outcome or contract;
  • observed harm, with its evidence;
  • the improvement's material side effects; and
  • one focused scenario that would expose the harm and the proposed correction.

Record observations without that connection as advisory analysis. They do not become patches, install candidates, or new gates. An explicitly requested broad process audit or improvement scope remains in scope; this check only separates its proposals from its advisory observations.

Improvement Types

Each category of output below has a delegation template:

  1. Hook generation — PreToolUse deny/redirect, SubagentStart context injection, Stop quality gates
  2. Agent prompt refinement — surgical fixes to agent system prompts via @subagent-refactorer
  3. Skill patches — add missing knowledge to skills via /plugin-creator:skill-creator
  4. CLAUDE.md updates — project-wide behavioral rules
  5. Script automation — replace repeated manual workflows with scripts or skills

For detailed templates and examples, see Improvement Templates.

For the Autonomous Refinement Loop (ARL) knowledge base — Layer 3 implementation details, prerequisites, and research synthesis — see ARL Knowledge.

Workflow

flowchart TD
    Start([Read analysis findings]) --> Parse[Extract anti-patterns with frequency and evidence]
    Parse --> Admit{Advances intended outcome<br/>or applicable contract?}
    Admit -->|No| Advisory[Retain advisory analysis]
    Admit -->|Yes| Score[Score by frequency × impact]
    Score --> Top[Select top findings]
    Top --> Type{Improvement type?}
    Type -->|Repeated tool misuse| Hook[Generate hook — deny/redirect]
    Type -->|Agent behavior issue| Agent[Generate agent patch instruction set]
    Type -->|Knowledge gap| Skill[Generate skill patch instruction set]
    Type -->|Project-wide issue| Claude[Generate CLAUDE.md addition]
    Type -->|Manual workflow| Script[Generate automation proposal]
    Hook --> Output[Write to .planning/kaizen/improvements/]
    Agent --> Output
    Skill --> Output
    Claude --> Output
    Script --> Output
    Output --> Install{--install flag?}
    Install -->|Yes| Apply[Write hooks to settings, apply patches]
    Install -->|No| Draft[Leave as proposals for review]

Read the full file on GitHub · 105 lines

Files

What ships with it

2 files 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. 22d ago Changed · +20 lines e8c9af6ee9e5
  2. 2mo ago First seen · 85 lines · 74 tokens per session scan A a34abe9612e6

Subscribe to this mod's changes

kaizen-improvement is a skill published in the GitHub repository Jamie-BitFlight/claude_skills (67 stars, last pushed 19d ago), licensed MIT. It adds 74 tokens to every session and 1,053 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.

Related

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