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[IMPROVEMENT] Capability manifest for newly acquired tools — machine-checkable capability + trust labels so execution boundaries are enforced, not inferred (AgentBound) #1699

Description

@Lexus2016

Summary

When the pipeline acquires or wraps a new tool, emit a structured capability + trust manifest (read-only / write / execute; verified vs. untrusted) so execution boundaries are enforced rather than inferred. This is the capability-manifest analogue of the tool-guidance thread, on the security axis.

Source: AgentBound: Securing Execution Boundaries of AI Agents, Proc. ACM Softw. Eng. (FSE) 2026. Proposes an AgentManifest capability system for MCP servers: automatically generated, machine-checkable manifests declaring each tool/server's operations — 96.4% accuracy on the most fine-grained analysis. Related: "Towards Verifiably Safe Tool Use" (arXiv:2601.08012).

Why this matters for a self-evolving agent

Hermes relies on tool descriptions and does not yet make tool capability scope a machine-checked attribute. For a self-evolving agent that grows its tool manifest on demand (SciToolAgent-Evo, 2026-08-04), the moment a novel tool is integrated is precisely when its capability/trust semantics must be declared machine-checkably. AgentBound supplies the manifest discipline that online tool acquisition would want.

Proposed implementation

Whenever the pipeline acquires/wraps a new tool:

  1. Generate a structured capability + trust label (operations: read-only/write/execute; trust: verified vs. untrusted) rather than relying on a hand-written natural-language description.
  2. Validate the manifest against real behavior (capability declarations generated and validated against actual server/tool behavior, not hand-written).
  3. Enforce the boundary at the execution layer using the manifest, so scope is checked rather than inferred.

Priority

Priority score: 0.84 (Impact: Medium, Effort: Low). Low-effort, high-value guardrail; aligns with the verifiable-tool-use agenda (arXiv:2601.08012).

Sources

  • AgentBound: Securing Execution Boundaries of AI Agents, Proc. ACM Softw. Eng. (FSE) 2026
  • arXiv:2601.08012 (Towards Verifiably Safe Tool Use)

Related issues

  • SciToolAgent-Evo tool-set growth (2026-08-04)
  • Per-tool capability-profile memory (companion IMPROVEMENT, this cycle)

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