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NEXUS Summarize
by
CyberForexBlockchain
· GitHub ↗
· v1.1.0
· MIT-0
304
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Install in OpenClaw
/install nexus-summarize
Description
Summarize long documents while preserving key info
Usage Guidance
This skill is coherent with being a paid summarization API, but exercise caution before installing: 1) Verify the service and domain (https://ai-service-hub-15.emergent.host) independently — the package provides no homepage or provenance. 2) Treat NEXUS_PAYMENT_PROOF as a sensitive secret: the skill will send it as an HTTP header to the external host. If you do not trust the endpoint, do not set that env var. 3) Prefer testing using the documented sandbox mode (X-Payment-Proof: sandbox_test) before supplying real payment proofs. 4) Avoid sending private keys or unencrypted signed transactions to third parties unless you fully trust the sponsor endpoint — posting signed XDRs can disclose signature material. 5) If you need stronger assurance, request vendor documentation or source code for the remote service, or use an alternative summarizer with established provenance. Additional information that would raise confidence: a trustworthy homepage, public vetting of the ai-service-hub domain, or more explicit notes on how NEXUS_PAYMENT_PROOF is scoped/rotated and whether it's reversible or limited to a short-lived credential.
Capability Analysis
Type: OpenClaw Skill
Name: nexus-summarize
Version: 1.1.0
The skill is a standard wrapper for a remote AI summarization service hosted at ai-service-hub-15.emergent.host. It implements the MPP (Machine Payment Protocol) and x402 standards for blockchain-based payments on Cardano and Stellar. The permissions are correctly restricted to network access only, with no filesystem or shell access requested, and the code/instructions contain no evidence of data exfiltration, malicious execution, or prompt injection.
Capability Tags
Capability Assessment
Purpose & Capability
The skill's name and description (summarization) align with the instructions (POST text to an external summarization API). Requiring a payment proof credential (NEXUS_PAYMENT_PROOF) is consistent with a paid service, but the manifest marks that env var as required even though the SKILL.md documents a sandbox/test mode that should not need a credential — this mismatch is unexpected.
Instruction Scope
Instructions require sending user data (the text to summarize) to https://ai-service-hub-15.emergent.host and also describe posting signed Stellar XDRs to a sponsor endpoint. Posting signed XDRs or payment proofs can expose cryptographic signatures or payment identifiers; the skill's trust statement claims no permanent storage but that is unverifiable. The skill's runtime guidance also instructs the agent to read the NEXUS_PAYMENT_PROOF env var into an X-Payment header — that is direct transmission of a credential to a third party.
Install Mechanism
No install spec and no code files are present (instruction-only). This reduces filesystem risk because nothing is written or executed locally.
Credentials
Only one env var is requested (NEXUS_PAYMENT_PROOF), which is proportionate for a paid API. However: (1) it's marked required in the manifest even though the documentation provides a sandbox/test option; (2) the skill will transmit that env value as an HTTP header to an external host, meaning a potentially sensitive secret is sent to a third-party endpoint. The manifest provides no justification for why the variable must be pre-populated rather than optional at call time.
Persistence & Privilege
always is false and there is no install-time persistence or modification of other skills or system settings. The skill requests network access (documented) but no filesystem or shell access, which matches its instruction-only nature.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install nexus-summarize - After installation, invoke the skill by name or use
/nexus-summarize - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.1.0
Added x402 payment protocol (Coinbase/Masumi), multi-chain Cardano + Stellar documentation, 10 protocols
v1.0.0
Initial release - NEXUS AI Service on Cardano
Metadata
Frequently Asked Questions
What is NEXUS Summarize?
Summarize long documents while preserving key info. It is an AI Agent Skill for Claude Code / OpenClaw, with 304 downloads so far.
How do I install NEXUS Summarize?
Run "/install nexus-summarize" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is NEXUS Summarize free?
Yes, NEXUS Summarize is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does NEXUS Summarize support?
NEXUS Summarize is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created NEXUS Summarize?
It is built and maintained by CyberForexBlockchain (@cyberforexblockchain); the current version is v1.1.0.
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