NexusClaw
NexusClawEnterprise Applications & Digital Employee Platform

ABAC | Attribute Boundaries

Security is not a prompt asking a model to be careful. Before context enters, a tool runs, or a record is written, the system validates actor, tenant, object, action, and risk.

01Boundary model02Context filtering03Risk decision04Controlled execution05Approval and exception06Evidence review
01 / Security operating blueprint: subject, policy, execution, and evidence control chain
The six stages in the blueprint map one-to-one to the sections below: every node has an action, an owner, and an evidence output.
01

Boundary model

Start with who does what inside which boundary

Bind users, digital employees, service identities, tenants, workspaces, and resource objects in one authorization graph; no tenant context means no execution.

Execution steps

  1. 01

    Resolve subject: user / Agent / service identity

  2. 02

    Bind tenant: org, workspace, region

  3. 03

    Resolve object: record, file, tool

  4. 04

    Generate action: read / write / delete / egress

Acceptance evidenceSubject and workspace IDsObject permission and data classTenant-context signature
Boundary model: Start with who does what inside which boundary flow, SOP, and evidence
02

Context filtering

Give an Agent only the context the task needs

Run permission-aware retrieval, then field filtering, redaction, and purpose checks; discoverable does not mean context-eligible.

Execution steps

  1. 01

    Filter candidates by actor

  2. 02

    Trim context by field class

  3. 03

    Redact or block sensitive fields

  4. 04

    Store the final context summary

Acceptance evidenceRetrieval filtersField-level redaction resultContext summary and purpose
Context filtering: Give an Agent only the context the task needs flow, SOP, and evidence
03

Risk decision

Put deny-by-default and risk tiers before tool calls

Every action matches a versioned guardrail: low-risk may pass, medium-risk asks for confirmation, high-risk needs approval, prohibited actions block.

Execution steps

  1. 01

    Match object, action, and policy version

  2. 02

    Compute risk level L0–L4

  3. 03

    Choose allow, review, approval, or block

  4. 04

    Record decision reason and rule

Acceptance evidenceRisk levelMatched policy versionDecision reason and time
Risk decision: Put deny-by-default and risk tiers before tool calls flow, SOP, and evidence
04

Controlled execution

Route tools, secrets, and egress through one execution gate

An Agent does not hold long-lived secrets; tool registration, parameter validation, secret brokering, and egress policy decide each call.

Execution steps

  1. 01

    Check tool allowlist

  2. 02

    Validate args, fields, and destination

  3. 03

    Issue short-lived access via broker

  4. 04

    Revoke credential and audit

Acceptance evidenceTool version and argument summarySecret-broker sessionEgress target and result
Controlled execution: Route tools, secrets, and egress through one execution gate flow, SOP, and evidence
05

Approval and exception

Give high-risk work an owner, expiry, and human handoff

Approval is not a popup; it is an accountable chain: who approved what, for how long, and when a changed condition requires reapproval.

Execution steps

  1. 01

    Identify high-risk and exception cases

  2. 02

    Assign owner and approval level

  3. 03

    Set expiry, conditions, and escalation

  4. 04

    Return to human on timeout or change

Acceptance evidenceApprover and decisionExpiry and conditionsHandoff, timeout, and rejection
Approval and exception: Give high-risk work an owner, expiry, and human handoff flow, SOP, and evidence
06

Evidence review

Join access, calls, approvals, and writes into one audit chain

Correlate request, context, policy, tool, approval, and outcome events so a reviewer can trace every decision from the result backward.

Execution steps

  1. 01

    Generate a correlated event ID

  2. 02

    Link context, policy, and tool calls

  3. 03

    Keep outcomes, blocks, and rollback

  4. 04

    Export a review package by checklist

Acceptance evidenceComplete event chainRollback and handoffExport time, scope, owner
Evidence review: Join access, calls, approvals, and writes into one audit chain flow, SOP, and evidence

Bring Security requirements into a real evaluation

We map the principle to an acceptance checklist for your data, workflow, deployment boundary, and owners.

Identity and workspace set scopepolicy evaluates action and sensitive fieldshigh-risk work enters approvalonly approved work executes and returns evidence
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Region, data, model, operations, and acceptance requirements still need to be confirmed item by item in the project assessment.