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.
npx skills add alexmond/alexmskills --skill spring-batchgit clone --depth 1 https://github.com/alexmond/alexmskillsWrote 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/alexmond/alexmskills/spring-batch)<a href="https://agentmods.dev/skills/alexmond/alexmskills/spring-batch"><img src="https://agentmods.dev/badge/skills/alexmond/alexmskills/spring-batch/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/alexmond/alexmskills/spring-batch"><img src="https://agentmods.dev/badge/skills/alexmond/alexmskills/spring-batch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Anti-Refusal · line 256 Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
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 | $0.00087 | $0.05014 |
| Opus 5.5 | $0.00035 | $0.02006 |
| Sonnet 5.5 | $0.00017 | $0.01003 |
| Haiku 4.5 | $0.00009 | $0.00501 |
Grade A, and why
spring-batch 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.
How it starts
The opening of the file, as written. The whole thing — 450 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Batch development
Every rule here was paid for. Where a claim has a measurement or a runnable sample behind it, the source is named — prefer checking it over trusting this file, and correct the file when it is wrong (see Growing this skill).
Ground new behaviour in the playground first.
spring-boot-playground'sspring-boot-batch-parent/holds one module per mechanism, each asserting behaviour rather than describing it:spring-boot-batch-restart,-flow,-tasklet,-partition. When you are unsure what the framework does, write the case there and run it — that is what the modules are for (use a local checkout if one exists; otherwise clone the repo). 17 tests, H2, no external services.
1. The default JobRepository stores nothing, and that is deliberate
The single most expensive thing to not know.
spring-boot-starter-batch plus a working DataSource yields
ResourcelessJobRepository. There is no BatchJdbcAutoConfiguration in Boot 4's
batch module — all eleven classes of org.springframework.boot.batch.autoconfigure
were checked.
It is a design decision, not an omission. whatsnew.html: it has been the
default since 5.2, "no longer requires an in-memory database (H2, HSQLDB) for
metadata storage", which "improves default performance and reduces memory
footprint". Knowing that changes how you argue about it: the framework is not
broken, it is optimised for the case where nobody restarts anything, and it does
not tell you which case you are in.
What that looks like: the job runs, every step executes, it reports COMPLETED,
and nothing is written down. Every execution comes back id 1, no BATCH_*
table is created, and restart does not exist — not refused, absent. Nothing
warns you.
scan=d-1 execId=1 jobInstanceId=1
scan=d-2 execId=1 jobInstanceId=1 <- two different runs, same ids
tables: []
repository impl: ResourcelessJobRepository
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.
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 Changed · +74 lines · -25 tokens per session 9773a6293972
- 1mo ago First seen · 376 lines · 112 tokens per session scan A e381d08043ca
spring-batch is a skill published in the GitHub repository alexmond/alexmskills (9 stars, last pushed 9d ago), licensed MIT. It adds 87 tokens to every session and 5,014 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 2026-09-05.
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