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 MichelKerkmeester/skilled-agent-harness_spec-driven-loops --skill cli-jevgit clone --depth 1 https://github.com/MichelKerkmeester/skilled-agent-harness_spec-driven-loopsWrote 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/michelkerkmeester/skilled-agent-harness_spec-driven-loops/cli-jev)<a href="https://agentmods.dev/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/cli-jev"><img src="https://agentmods.dev/badge/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/cli-jev/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/michelkerkmeester/skilled-agent-harness_spec-driven-loops/cli-jev"><img src="https://agentmods.dev/badge/skills/michelkerkmeester/skilled-agent-harness_spec-driven-loops/cli-jev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00030 | $0.06201 |
| Opus 5.5 | $0.00012 | $0.02480 |
| Sonnet 5.5 | $0.00006 | $0.01240 |
| Haiku 4.5 | $0.00003 | $0.00620 |
Grade A, and why
cli-jev 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 today.
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 — 490 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Canonical source:
.skilled/skills/cli-classifier/cli-jev/. This is a generated markdown-only copy so Hermes can load the skill without scanning the canonical directory. Readreferences/,assets/andscripts/from the canonical path above.
TypeSafe Jev CLI Transport - Typed Judgments for Dispatch
Transport, not executor.
cli-jevis the packet of the hub'scli-jevtransport mode: it bridges thejevCLI and its judgment contract. Jev reads state, prints a typed judgment, and exits. It has no file tools, no loop and no lineage, so it never mutates this workspace and never completes a task on its own. Pair it with a workflow mode whenever the judgment feeds an edit.
Orchestrate jev for decisions a script can consume: a yes/no probability, one key from explicit
options, an ordered level, or several typed answers in one request. Jev returns a small
machine-readable object where prose generation would return a paragraph, which makes it the right
tool when the caller needs a value to branch on rather than text to read.
Core principle: send only the state the judgment needs, choose the narrowest question type that answers the question, read the exit code before the payload, and keep every consequence behind the caller's own authorization.
1. WHEN TO USE
Activation Triggers
- Typed judgment: a task needs a probability, a category from a known set, or an ordered level rather than generated text.
- Branch input: a script, hook or gate needs a value it can compare, so
--valueand the exit code are the whole interface. - Batched classification: several unrelated questions apply to one state, answered together by
runinstead of by several calls. - Judgment transport discovery: a request names
jev, Jev, TypeSafe Jev,noul,choice,score, orjev-mcp.
What ships with it
60 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.
- benchmark/README.md 801 B
- benchmark/reports/2026-09-20-hub-routing-baseline/raw/hub-routing-run.sh 1.3 KB runs code
- benchmark/reports/2026-09-20-hub-routing-baseline/raw/hub-routing.txt 1.6 KB
- benchmark/reports/2026-09-20-hub-routing-baseline/skill-benchmark-report.md 3.3 KB
- changelog/v0.1.0.0.md 2.3 KB
- changelog/v0.2.0.0.md 2.3 KB
- cli-usage/assets/question-shaping-card.md 4.9 KB
- cli-usage/benchmark/README.md 1.9 KB
- cli-usage/benchmark/reports/2026-09-20-authenticated-verification/skill-benchmark-report.md 4.1 KB
- cli-usage/benchmark/reports/2026-09-20-phase-004-unauthenticated-pass/skill-benchmark-report.md 3.2 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/auth-probe.sh 1.5 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/auth-probe.txt 1.1 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/compare-surface.py 1.7 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/compare.py 1.8 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/dispatch-audit-live.txt 9.6 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/leak-check.py 1.3 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/mcp-probe.py 1.8 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/preflight-probe.sh 1.3 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/preflight-probe.txt 1.9 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/preflight-probe2.sh 2.0 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/preflight-probe2.txt 5.3 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/probe-matrix.sh 3.2 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/probe-matrix.txt 5.2 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/probe-surface.sh 1.5 KB runs code
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/probe-surface.txt 12 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/raw/rule-checks.txt 1.8 KB
- cli-usage/benchmark/reports/2026-09-20-post-migration-reverification/skill-benchmark-report.md 10 KB
- cli-usage/benchmark/reports/README.md 2.1 KB
- cli-usage/changelog/v1.0.0.0.md 2.1 KB
- cli-usage/changelog/v1.0.1.0.md 1.5 KB
- cli-usage/changelog/v1.0.2.0.md 1.5 KB
- cli-usage/feature-catalog/dispatch-guards/dispatch-guards.md 4.3 KB
- cli-usage/feature-catalog/feature-catalog.md 2.5 KB
- cli-usage/feature-catalog/judgment-primitives/judgment-primitives.md 4.1 KB
- cli-usage/feature-catalog/surfaces/surfaces.md 4.2 KB
- cli-usage/feature-catalog/transport-classification/transport-classification.md 4.8 KB
- cli-usage/manual-testing-playbook/cli-invocation/binary-resolves-and-pins-version.md 4.8 KB
- cli-usage/manual-testing-playbook/cli-invocation/judgment-help-omits-hidden-endpoint-flag.md 4.7 KB
- cli-usage/manual-testing-playbook/cli-invocation/one-judgment-per-type-returns-typed-answer.md 7.2 KB
- cli-usage/manual-testing-playbook/cli-invocation/root-help-lists-six-subcommands.md 4.2 KB
- cli-usage/manual-testing-playbook/dispatch-guards/declared-hard-rules-refuse-violations.md 5.1 KB
- cli-usage/manual-testing-playbook/dispatch-guards/dispatch-resolves-from-command.md 4.9 KB
- cli-usage/manual-testing-playbook/dispatch-guards/prose-mention-is-not-a-dispatch.md 4.8 KB
- cli-usage/manual-testing-playbook/exit-codes/batch-request-with-no-key-exits-3.md 5.2 KB
- cli-usage/manual-testing-playbook/exit-codes/choice-single-option-not-refused.md 5.1 KB
- cli-usage/manual-testing-playbook/exit-codes/key-never-echoed-on-error-path.md 4.6 KB
- cli-usage/manual-testing-playbook/exit-codes/malformed-json-state-exits-2.md 4.4 KB
- cli-usage/manual-testing-playbook/exit-codes/missing-required-flag-is-argparse-failure.md 5.0 KB
- cli-usage/manual-testing-playbook/exit-codes/no-key-exits-3-with-structured-json.md 5.3 KB
- cli-usage/manual-testing-playbook/exit-codes/refused-connection-exits-4.md 4.9 KB
- cli-usage/manual-testing-playbook/exit-codes/request-without-questions-exits-2.md 4.4 KB
- cli-usage/manual-testing-playbook/exit-codes/score-single-level-not-refused.md 5.0 KB
- cli-usage/manual-testing-playbook/exit-codes/unknown-subcommand-is-argparse-failure.md 4.4 KB
- cli-usage/manual-testing-playbook/exit-codes/unreadable-state-file-exits-2.md 4.7 KB
- cli-usage/manual-testing-playbook/manual-testing-playbook.md 10 KB
- cli-usage/manual-testing-playbook/mcp-server/handshake-and-four-tools.md 5.4 KB
- cli-usage/manual-testing-playbook/providers/auth-status-reports-key-state.md 6.0 KB
- cli-usage/manual-testing-playbook/providers/custom-provider-requires-endpoint.md 5.4 KB
- cli-usage/manual-testing-playbook/providers/invalid-provider-env-exits-2.md 4.4 KB
- cli-usage/README.md 6.3 KB
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.
- today Changed 16eec2bb98bc
- 5d ago Changed 0445b0f0e2e3
- 12d ago Changed · +19 lines 40dbe9738684
- 14d ago Changed · -1 lines 165762dc3668
- 16d ago Changed · +319 lines 059b8b73e631
- 19d ago Changed 05fdd92200cb
- 20d ago Changed 7eba1884b459
- 23d ago Changed b0a659d53b91
- 25d ago Changed · +5 lines ab58e14fa33b
- 27d ago First seen · 148 lines · 30 tokens per session scan A d6892380efd9
cli-jev is a skill published in the GitHub repository MichelKerkmeester/skilled-agent-harness_spec-driven-loops (37 stars, last pushed yesterday), licensed MIT. It adds 30 tokens to every session and 6,201 once invoked, about $0.0001 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 2026-09-20.
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