Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add melodic-software/claude-code-plugins/plugin install code-tidyingWrote 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.
[](https://agentmods.dev/skills/melodic-software/claude-code-plugins/batch-simplify)<a href="https://agentmods.dev/skills/melodic-software/claude-code-plugins/batch-simplify"><img src="https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/batch-simplify/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.
<a href="https://agentmods.dev/skills/melodic-software/claude-code-plugins/batch-simplify"><img src="https://agentmods.dev/badge/skills/melodic-software/claude-code-plugins/batch-simplify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00081 | $0.07990 |
| Opus 5.5 | $0.00032 | $0.03196 |
| Sonnet 5.5 | $0.00016 | $0.01598 |
| Haiku 4.5 | $0.00008 | $0.00799 |
Grade A, and why
batch-simplify 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.
How it starts
The opening of the file, as written. The whole thing — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Native step: simplify (bundled skill)
When the bundled simplify skill resolves in this session, Phase 6 step 2 invokes it with each
group's file list as its target, in place of spawning the simplifier agent. This skill keeps the
discovery, filtering, grouping, ordering, verification, and report around it. One mutating pass
runs per group, never both. docs mode keeps the simplifier agent, since simplify has no
factual-staleness pass, and records State: skipped (docs mode). The skill body enters context
once and stays there.
Identity check. The name is in the skill listing; the description is advisory. A description that reads as a different surface is a likely user or project shadow: skip with a warning and spawn the agent. A name listed with no description is invoked with the warning "identity confirmed by name alone". Pointer for when the listing drops a description: Skill descriptions are cut short. As of: 2026-10-11. Recheck trigger: that section changes when a description is dropped.
Mutation. Groups the step runs over go one at a time, never in a parallel wave. Before each invocation, fingerprint the tracked files outside that group; any change there right after it is mutation detected after a scoped invocation, and the run exits degraded.
Skip report. When the step does not run, the state names why: did not resolve in this session, invocation refused (the reason, never retried), or identity mismatch; those three name the axis
line: settings or environment, plan, platform or provider, host surface; and the enable path,
read live from Bundled skills.
As of: 2026-10-11. Recheck trigger: that section changes the settings that turn a bundled skill
off. The matching row is in
context/bundled-simplify.md
(relay as of 2026-10-11; recheck when that table is renamed or moved). When simplify runs but
says it ran a weaker procedure, the state is resolved but degraded, and the report relays its disclosure instead of
calling the group fully simplified.
Result block. The Phase 8 report opens with this block, whichever state the step ended in:
Native step: simplify
State: ran | resolved but degraded (<disclosure>) | did not resolve in this session (<axis>) | invocation refused (<reason>) | identity mismatch | skipped (docs mode | unattended) | mutation detected after a scoped invocation
Scope: <file groups the step ran over, or none>
Outside-scope changes: none | <paths>
unattended: never invoke simplify; the simplifier agent runs every group, and the result
block records State: skipped (unattended) without asking.
Arguments. [unattended] [time-window|branch|repo] [path...] [docs] [override] [in-place[=commit]]. e.g., /batch-simplify 72h, /batch-simplify branch docs, /batch-simplify repo plugins/foo. Default: 48h
What ships with it
5 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.
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.
- 3d ago Changed · +9 lines 1f716d52ec9b
- 5d ago Changed · +6 lines eeaad7be1173
- 8d ago Changed · -15 tokens per session 214603e96e64
- 13d ago Changed 0a9167fc936b
- 15d ago Changed dec0208d78d7
- 16d ago Changed · +48 lines · +24 tokens per session c514065b93b5
- 17d ago Changed · -81 tokens per session bd31d5de9a7c
- 22d ago Changed · +1 lines 0c01d2d868bf
- 1mo ago Changed · +23 lines ee0a61274784
- 1mo ago First seen · 241 lines · 153 tokens per session scan A 74007b4fddf1
batch-simplify is a skill published in the GitHub repository melodic-software/claude-code-plugins (25 stars, last pushed today), licensed MIT. It adds 81 tokens to every session and 7,990 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 2026-08-30.
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