The real workflow
Where Claude Code enters the work
An agency coding agent can cross client boundaries when repositories, terminals, credentials, caches, or sessions are reused between engagements.
Claude Code is a local or cloud coding agent with file, command, network, MCP, and editing capabilities governed by permissions, sandboxing, trust, and account settings.
Claude Code can execute Bash commands, and bypass or unsandboxed modes materially reduce protection.
Claude Code only has the permissions granted to it, but broad read access, bypass modes, unsandboxed commands, or overpowered MCP servers can make that boundary much wider than expected.
The presence of this path does not prove an incident. It identifies the boundary that should be checked before more sensitive context or authority is added.
Tool-specific boundary
Inspect the real access points.
What may carry context
repository and local file reads
edits and Bash commands
network access, MCP servers, hooks, and cloud environments
Settings to verify
Permission mode and deny rules
Filesystem and network sandbox
Trusted directories, MCP servers, hooks, and unsandboxed escape paths
Why this context matters
The consequence for agencies
Agency risk compounds when staff, contractors, shared tools, and reused credentials create paths between otherwise separate client environments. In this case, in a work environment, command authority can affect source code, deployment, cloud resources, customer systems, billing, and the integrity of the development pipeline.
A text answer is advice. A command changes state. Once an AI workflow can run scripts, install packages, edit files, call infrastructure, or reach the network, review and containment matter more than conversational confidence.
Every client remains isolated, access is attributable to a named operator, and the agency can deliver consistent evidence without revealing another client.
Context decision
Three questions before adding access
Can this operator or tool reach any repository, mailbox, drive, cache, token, or transcript belonging to another client?
Are credentials and AI sessions issued per client and person rather than shared across the agency?
Can the agency deliver useful proof to this client without including another client's names, paths, findings, or configuration?
Evidence goal: Create a separate client evidence record covering operator identity, workspace isolation, credentials, approved systems, review history, and delivery status.
A repeatable review
Four steps, no sensitive data required
- 1
Write down the exact Claude Code account, workspace, project, device, and connected service used in this workflow.
- 2
Record the permission mode, sandbox availability, excluded commands, allowed hosts, writable paths, and escape-hatch settings.
- 3
Assign the decision and next review to the client service owner or agency security lead; do not leave the access boundary as an unwritten assumption.
- 4
Enable sandboxing, fail closed when unavailable, and keep bypassPermissions disabled. Record the result without copying private content or raw credentials into the report.
Controls to apply
Reduce access before adding trust
Enable sandboxing, fail closed when unavailable, and keep bypassPermissions disabled.
Run with the least operating-system and cloud privilege that can complete the task.
Deny secret paths and unnecessary network destinations even when commands are otherwise allowed.
Require human review for destructive, external, authentication, deployment, and financial operations.
Decision rule
Know when a formal baseline is justified
If the product is text-only, do not imply command risk that does not exist. If command or tool execution is enabled, a documented sandbox and approval policy should exist before production work begins.
CapitalGuard is relevant when the workflow includes repositories, recurring private work, credentials, connected systems, commands, or evidence that must be shared with another person. It does not inspect this account from the page or guarantee that an incident cannot occur.
Primary references