Claude Certified Architect Foundations CCAR-F Exam Questions

Option A matches the standard coordinator-managed subagent model. The coordinator invokes the web-search agent, receives its final result, selects the useful URLs or source records, and then supplies them explicitly when invoking the document-analysis agent. This keeps task ownership, provenance, and execution order visible to the coordinator.

The Claude Agent SDK subagent documentation states that a subagent begins with a fresh context window and does not inherit the parent’s conversation history or previous tool results. The information passed through the Agent tool’s prompt is the primary parent-to-subagent context channel. Consequently, the analysis prompt must include the source URLs, documents, retrieval notes, and any questions the analyzer must answer.

Option B requires nested delegation that is neither stated nor necessary and reduces centralized observability. Options C and D describe valid custom architectures only if the application has deliberately implemented a queue or shared memory system; neither is automatic Agent SDK behavior. Coordinator-mediated handoff is therefore the expected approach. For reliability, the handoff should use structured source records rather than an informal prose statement, ensuring that the analyzer receives identifiers, provenance, relevant excerpts, and analysis objectives.

Option C matches the distinction between reasoning about delegation and executing it. Defining subagents makes their descriptions available for selection, but the coordinator must still invoke the SDK’s subagent-spawning tool. Current Claude Agent SDK documentation calls this the Agent tool; Task was its earlier name and remains relevant to older SDK configurations. Anthropic’s Subagents in the SDK documentation instructs developers to include Agent in allowedTools so subagent invocations are approved automatically. Without that permission, an invocation can fall through to a permission callback or be denied under a non-interactive permission mode. Option A is unlikely because the configured subagent descriptions already tell Claude when each agent should be selected, although explicit prompting can improve invocation reliability. Option B misstates context isolation: context must be included in the spawning prompt, but that issue occurs after an invocation is attempted and does not explain the absence of all subagent executions. Option D would normally produce truncation evidence or incomplete output rather than consistent verbal promises with no tool call. The configuration should therefore permit Agent, explicitly request delegation where necessary, and log subagent invocation events.

Option C gives the reviewer access to the evidence currently missing from its prompt. An agentic review can use Grep, Glob, Read, language-server tools, and test commands to locate callers, follow imports, inspect type definitions, and verify whether a suspected compatibility issue actually exists. A turn limit controls cost while still allowing targeted exploration.

Anthropic’s context-engineering guidance recommends just-in-time retrieval: agents should retain lightweight references and dynamically load the information needed for the current task instead of preloading a large fixed context. Anthropic has also reported that code-review performance improves when the necessary repositories are available for gathering complete context. Option A may load many irrelevant files while still missing reflection, generated interfaces, dependency injection, or indirect call paths beyond the arbitrary two-hop boundary. Option B cannot reason reliably about code that the model cannot inspect. Option D improves coverage but fragments repository-wide relationships and may duplicate substantial work. An agentic loop can begin with the diff, identify uncertain cross-file effects, search only relevant paths, and report findings only after locating supporting code. Anthropic context-engineering guidance , Claude Code quality report

The reference to generic rendering patterns indicates that the current context has become saturated or that important earlier details are no longer receiving sufficient attention. Anthropic documents that performance can degrade as a Claude Code context window fills with conversation history, file contents, and command output; symptoms include forgetting earlier instructions and making less precise responses. ( https://code.claude.com/docs/en/best-practices )

Option C preserves the high-value rendering discoveries while isolating the physics investigation. The summary should identify the relevant rendering classes, synchronization boundaries, debug-overlay interfaces, and unresolved integration questions. A physics-focused subagent can then inspect collision and simulation code in its own context without adding dozens of additional files to the already crowded main conversation.

This explicit summary matters because an ordinary named subagent starts with a fresh, isolated context and does not automatically receive the parent’s full conversation history or previously read files. Claude constructs a delegation message containing the task context, so the essential rendering findings must be supplied deliberately. ( https://docs.anthropic.com/en/docs/claude-code/sub-agents )

Option A omits the integration context needed to guide the physics search. Option B destroys useful prior analysis. Option D keeps expanding an already degraded context and treats the symptom rather than controlling context growth.

Official references/topics: Context-Window Management; Subagent Isolation; Delegation Summaries; Codebase Exploration.

Option A uses the dedicated configuration mechanism for Anthropic’s managed Code Review service. The official Code Review documentation states that a root-level REVIEW.md is injected into every review agent as the highest-priority instruction block. It can redefine severity, suppress categories already enforced by CI, skip generated paths, and require concrete evidence before particular findings are reported.

The proposed rules map directly to the observed noise. Skipping lint and formatting findings eliminates duplication with deterministic CI checks. Excluding src/gen/* prevents comments on machine-generated code. Requiring a specific source line demonstrating incorrect behavior raises the verification threshold for rendering-helper findings without suppressing genuine defects.

Options B and C configure self-hosted GitHub Actions workflows, but the scenario concerns managed Code Review running through the Claude GitHub App on Anthropic’s infrastructure. Those workflow prompts do not govern the managed reviewer. Option D supplies useful general project context, but CLAUDE.md applies to all Claude Code tasks and has lower review-specific authority. The documentation states that REVIEW.md is the stronger control for changing what managed Code Review flags and how findings are reported. It therefore provides the most targeted solution with the least unnecessary infrastructure.