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 simota/agent-skills --skill nexusgit clone --depth 1 https://github.com/simota/agent-skillsWrote 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/simota/agent-skills/nexus)<a href="https://agentmods.dev/skills/simota/agent-skills/nexus"><img src="https://agentmods.dev/badge/skills/simota/agent-skills/nexus/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/simota/agent-skills/nexus"><img src="https://agentmods.dev/badge/skills/simota/agent-skills/nexus.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Excessive Agency · line 109 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00052 | $0.05762 |
| Opus 5.5 | $0.00021 | $0.02305 |
| Sonnet 5.5 | $0.00010 | $0.01152 |
| Haiku 4.5 | $0.00005 | $0.00576 |
Grade A, and why
nexus 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 10d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- nexus — 91% identical, 31 lines differ
How it starts
The opening of the file, as written. The whole thing — 250 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Nexus
Coordinate specialist agents, design the minimum viable chain, execute safely. AUTORUN/AUTORUN_FULL spawn each agent as an independent session via the hub's spawn tool (see Execution Model); Guided/Interactive stop for confirmation at configured points.
Trigger Guidance
Use Nexus for: a single task that crosses specialist boundaries and needs chain classification, selection, execution, aggregation, and verification; scope-adaptive product delivery (deliver); proactive project scan (/Nexus no-args); hub-spoke execution across independent tracks.
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.
- _common 10 B
- oracle 9 B
- reference/_common 13 B
- reference/abide-recipe.md 36 KB
- reference/acceptance-recipe.md 31 KB
- reference/adaptive-prompt-policy.md 13 KB
- reference/agent-chains.md 25 KB
- reference/agent-disambiguation.md 31 KB
- reference/anneal-recipe.md 22 KB
- reference/apex-recipe.md 39 KB
- reference/assay-recipe.md 28 KB
- reference/autonomy-quality-protocol.md 37 KB
- reference/autorun-schema.md 734 B
- reference/burnish-recipe.md 26 KB
- reference/cartograph-recipe.md 28 KB
- reference/charter-recipe.md 24 KB
- reference/chisel 12 B
- reference/chorus-recipe.md 18 KB
- reference/chronicle-recipe.md 55 KB
- reference/clone-recipe.md 38 KB
- reference/compass 13 B
- reference/confidence-scoring.md 7.0 KB
- reference/conflict-resolution.md 7.7 KB
- reference/context-strategy.md 15 KB
- reference/converge-recipe.md 12 KB
- reference/crucible-recipe.md 17 KB
- reference/deliver-recipe.md 8.6 KB
- reference/delivery-agent-deployment-matrix.md 6.0 KB
- reference/delivery-anti-stall-engine.md 5.2 KB
- reference/delivery-decision-matrix.md 5.2 KB
- reference/delivery-exit-criteria-validation.md 9.4 KB
- reference/delivery-momentum-system.md 4.6 KB
- reference/delivery-output-formats.md 2.9 KB
- reference/delivery-product-lifecycle.md 5.5 KB
- reference/delve-recipe.md 19 KB
- reference/dialogue-protocol.md 9.4 KB
- reference/doc-quality-protocol.md 8.9 KB
- reference/enact-recipe.md 27 KB
- reference/error-handling.md 21 KB
- reference/eureka-recipe.md 69 KB
- reference/evaluator-loop-protocol.md 15 KB
- reference/execution-layers.md 3.9 KB
- reference/execution-phases.md 6.9 KB
- reference/fuse-recipe.md 25 KB
- reference/gedanken-recipe.md 13 KB
- reference/goal-recipe.md 21 KB
- reference/graft-recipe.md 26 KB
- reference/growth-acceptance-recipe.md 20 KB
- reference/guardrails.md 20 KB
- reference/hallmark-recipe.md 12 KB
- reference/handoff-validation.md 10 KB
- reference/hub-authoring.md 8.2 KB
- reference/inline-recipes.md 29 KB
- reference/intent-clarification.md 13 KB
- reference/judge 11 B
- reference/lattice-recipe.md 17 KB
- reference/layer-recipe.md 12 KB
- reference/loop-engineering-primitives.md 14 KB
- reference/marquee-recipe.md 17 KB
- reference/migrate-recipe.md 21 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.
- 10d ago Changed d46359e6715e
- 11d ago Changed a829bb27f240
- 16d ago Changed fa7a7616e1b3
- 1mo ago Changed 9db767dc23e2
- 1mo ago First seen · 250 lines · 52 tokens per session scan A b592c4b44484
nexus is a skill published in the GitHub repository simota/agent-skills (95 stars, last pushed 3d ago), licensed MIT. It adds 52 tokens to every session and 5,762 once invoked, about $0.0002 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.
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