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 agentmods add skills/alexmond/jhelm/new-functionnpx skills add alexmond/jhelm --skill new-functiongit clone --depth 1 https://github.com/alexmond/jhelmWhat 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 | $0.00018 | $0.00536 |
| Opus 5 | $0.00009 | $0.00268 |
| Sonnet 5 | $0.00004 | $0.00107 |
| Haiku 4.5 | $0.00002 | $0.00054 |
Grade A, and why
new-function 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 2d 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 — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Add a new template function
Guided workflow for adding a new template function named $ARGUMENTS.
Step 1: Determine the category
Helm functions (in jhelm-gotemplate/src/main/java/.../helm/):
conversion/ConversionFunctions.java— YAML/JSON conversion (toYaml, fromJson, etc.)template/TemplateFunctions.java— Template inclusion (include, tpl, required)kubernetes/KubernetesFunctions.java— Kubernetes integration (lookup)chart/ChartFunctions.java— Chart utilities (semverCompare, certificate generation)
Sprig functions (in jhelm-gotemplate/src/main/java/.../sprig/):
strings/StringFunctions.java— String manipulationcollections/CollectionFunctions.java— List/dict operationslogic/LogicFunctions.java— default, empty, coalesce, ternarymath/MathFunctions.java— Arithmetic operationsencoding/EncodingFunctions.java— Base64, SHA, etc.crypto/CryptoFunctions.java— UUID, random, encryptiondate/DateFunctions.java— Date formatting/manipulationreflection/ReflectionFunctions.java— Type checkingnetwork/NetworkFunctions.java— DNS lookupsemver/SemverFunctions.java— Semantic versioning
Step 2: Implement the function
- Add the function to the appropriate category class
- Follow existing patterns in that class (method signature, error handling)
- Use
@Slf4jfor logging if needed - For strict variants, create a
must*version that throws on error
Step 3: Registration
The function auto-registers via the coordinator:
- Helm functions:
HelmFunctions.java→getFunctionCategories() - Sprig functions:
SprigFunctionsRegistry.java→getFunctionCategories()
If adding a new category, update getFunctionCategories() in the appropriate coordinator.
Step 4: Add tests
Add tests in the corresponding test class (e.g., Helm4FunctionsTest.java, or the test class for the Sprig category).
Step 5: Verify
Run the relevant module tests:
./mvnw test -pl jhelm-gotemplate
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.
- 2d ago First seen · 57 lines · 18 tokens per session scan A 6ce14dff5b2e
new-function is a skill published in the GitHub repository alexmond/jhelm (4 stars, last pushed 8d ago), licensed Apache-2.0. It adds 18 tokens to every session and 536 once invoked, about $0.0001 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 2026-08-31.
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