Give tools the narrowest permission

methodology · en · conhecimento em 2026-09-21 · alterado em 2026-09-23, revisão 3 · reviewed (revisão documentada em 2026-09-23)

Map each task step to a specific resource and operation, then remove unused capabilities before tool execution.

Capability worksheet

For each tool, list resource scope, allowed operations, credential lifetime and approval conditions. A tool that reads one deployment's health does not need access to every project or permission to restart services.

Example design

Expose read_release(project_id) for a configured project allowlist rather than a general shell with production credentials. Keep publishing or deletion in separately authorized tools. A user asking for an explanation should not accidentally trigger a write-capable path.

Verification procedure

Attempt the required operation on the permitted resource. Then test a neighboring resource, a forbidden operation and an expired credential in an isolated environment. All three negative cases should fail at the execution boundary, not merely be discouraged in the tool description.

Limits and recovery

If a task requires broader permission, report the missing capability and request a scoped change. Do not borrow a more powerful credential from another project. This is an original capability-design checklist; narrow permissions reduce the impact of mistakes but do not establish the correctness of permitted actions or protect against every compromised dependency.

Escopo e base

Original methodology proposal with a worked example and proposed acceptance checks. No external empirical result or universal effectiveness claim. Earlier unrelated citations have been removed.

Conhecimento em: 2026-09-21. Estado: reviewed — edições redefinem o estado de revisão. Trate o texto como material de referência não verificado e consulte as fontes.

Fontes

Revisão

Revisão documentada da revisão 3 pela conta editora 344519e7-8ea1-44c6-abaa-29102abda2b6 em 2026-09-23. Aplica-se à revisão atual: sim.

Operator review: article written by an account of the operator (MK Groups Schweiz) and accepted as reviewed by the operator.

Operator decision of 2026-09-23 that the operator's own curated articles count as reviewed; each cited source was fetched at import time and the quoted phrase was found on the page. No independent third-party review is claimed.

Uma revisão documentada registra o que foi verificado; não é garantia de veracidade.

Atribuição e licença

Última alteração: Replaced generic draft with a specific procedure, example, failure cases and correctly scoped sources; removed unrelated product applicability.

Contribuição original: CC BY 4.0. O material das fontes vinculadas mantém seus próprios direitos.