Pass the Anthropic Claude Certified Architect CCAR-F Questions and answers with CertsForce

Option C directly searches source-file contents for imports of @company/auth . Anthropic’s Claude Code tools reference states that Grep locates patterns within files, while Glob matches filenames and paths. The search can account for the repository’s supported module syntaxes, including static imports, require() calls, dynamic imports, and re-exports. It can also restrict results by file type or directory when appropriate. Option A identifies packages that declare the dependency but does not prove which source files import or invoke it; workspace-level dependency declarations may cover many packages. Option B finds authentication-related filenames, which are unrelated to whether a file imports the package. Option D searches directory names and therefore has the same limitation. After Grep returns the matching files and line numbers, the agent can read the surrounding code to determine whether each import supports middleware registration, token verification, authorization checks, or re-exporting. This produces an accurate usage inventory while minimizing context consumption and unnecessary file reads.

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The pipeline must preserve source evidence while making inconsistencies explicit. Option D records the amount stated on the invoice separately from the total derived from extracted line items. A mismatch then becomes a machine-detectable validation condition rather than an invisible extraction defect.

This approach is superior because it does not silently overwrite source data or ask another model to guess which value is correct. Anthropic’s evaluation guidance recommends automated, code-based grading whenever the criterion can be expressed deterministically. Arithmetic reconciliation is precisely such a criterion. ( https://docs.anthropic.com/en/docs/build-with-claude/develop-tests ) In production, the summation should preferably be calculated by application code using normalized decimal values, even though the option describes the model populating calculated_total . The essential design principle remains the same: preserve stated_total , compute an independent total, compare them, and route discrepancies for adjudication.

Option A might improve behavior but cannot resolve genuine OCR corruption and could encourage the model to modify extracted values merely to create mathematical consistency. Option B introduces a second probabilistic judgment without new evidence. Option C is unacceptable for accounting data because it fabricates adjusted amounts and destroys fidelity to the invoice.

The schema should therefore expose both values and attach a validation status or review reason when they differ.

Official references/topics: Deterministic Validation; Human-in-the-Loop Review; Structured Output Design; Source-Fidelity Controls.

The investigation contains several bounded research questions that can be delegated independently: locating the complete test suite, tracing payment and refund flows, identifying conditional branches, and mapping external dependencies. Each subagent can read the relevant files in its own context and return a focused summary to the coordinating agent.

Anthropic recommends subagents for codebase exploration because extensive file reading rapidly consumes the main context window. Subagents isolate that volume and return only their conclusions, preserving the main conversation for synthesis and implementation. ( https://docs.anthropic.com/en/docs/claude-code/common-workflows ) Anthropic also describes parallel research as appropriate when separate investigation paths can proceed independently and the main agent can synthesize the results afterward. ( https://docs.anthropic.com/en/docs/claude-code/sub-agents )

Option B sacrifices the current conversational state and requires reconstruction after /clear . Option C may reduce token usage, but isolated text matches cannot reliably reveal full execution paths, indirect calls, or test coverage relationships. Option D converts the current analysis into a single lossy summary and risks omitting details needed later.

Option A directly addresses the demonstrated context degradation while retaining a high-level coordinating thread. The subagent prompts should be narrowly scoped and require concrete outputs such as file paths, uncovered branches, call-chain evidence, and existing tests associated with each flow.

Official references/topics: Subagent Context Isolation; Parallel Research; Context Preservation; Coordinated Codebase Analysis.

Option B eliminates an unnecessary agent boundary. The coordinator already possesses the accumulated findings and can answer a straightforward follow-up without serializing more than 80,000 tokens into a fresh subagent context, waiting for another model execution, and receiving the result back. Anthropic’s multi-agent research engineering guidance emphasizes scaling effort to task complexity: simple fact-finding or lightweight processing should use substantially fewer agents and tool calls than complex research. It also reports that multi-agent systems consume far more tokens than ordinary interactions, making avoidable delegation expensive and slow. Option A adds an interactive retrieval protocol between agents and additional round trips. Option C spends compute proactively on summaries that users may never request and creates cache-invalidation problems whenever findings change. Option D could reduce repeated input cost where caching is applicable, but the subagent still receives and processes an unnecessarily large context and still incurs spawning latency. Delegation is valuable when an isolated context or specialized capability materially improves the result. For a direct summary already supported by the coordinator’s active context, local handling is the faster and simpler architecture.

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In the standard Claude tool-use loop, the application executes lookup_order and sends its output back as a tool_result . That result becomes part of the conversation state available to Claude. Claude then evaluates the purchase date, refund policy, customer request, authorization constraints, and available tools before selecting the next action.

Anthropic describes client-tool orchestration as a repeated loop: Claude emits a tool_use request, the application executes it, returns a tool_result , and Claude continues reasoning from the updated conversation. Claude, rather than the tool implementation, selects when and how to invoke the next available tool unless the application has explicitly implemented a fixed workflow. ( https://platform.claude.com/docs/en/agents-and-tools/tool-use/how-tool-use-works )

Options B and C describe possible custom orchestration architectures, but neither is stated in the scenario. Option D is inconsistent with adaptive agent behavior because later actions depend on information that did not exist before lookup_order completed. A rigid sequence would not respond appropriately to different purchase dates, eligibility states, or order conditions.

The tool result should return high-signal fields such as purchase date, return-window status, refund eligibility, existing refund status, and stable order identifiers so Claude can make the subsequent decision accurately.

Official references/topics: Tool-result continuation, adaptive agent loops, model-directed tool selection, sequential dependency handling.

The venue server must be available to every project contributor, so it belongs at project scope. Claude Code stores project-scoped MCP configurations in the repository-root .mcp.json file, which can be committed to version control and shared with the team.

The experimental playlist server should remain private. Local-scoped MCP servers are stored under the current project’s entry in ~/.claude.json , while user-scoped servers are also stored in ~/.claude.json but load across all projects. Because this server is described as a personal experiment, either private scope is conceptually appropriate; among the listed choices, option B correctly separates shared project configuration from private personal configuration. ( https://code.claude.com/docs/en/mcp )

Option A prevents the team from receiving the venue configuration. Option C reverses the intended visibility. Option D exposes the experimental server configuration to other contributors and may commit machine-specific commands or credentials.

The preferred commands would specify --scope project for the shared venue server and --scope local for an experiment limited to the current repository. Project-scoped servers also require user approval before Claude Code activates configurations received through .mcp.json .

Official references/topics: MCP Installation Scopes; Project Scope; Local Scope; .mcp.json ; ~/.claude.json .

A tool definition converts the desired extraction structure into an explicit machine-readable contract. Claude returns the event information inside a tool_use block, with the tool arguments corresponding to the properties defined by the tool’s input_schema . Anthropic specifies that custom tool parameters are described using JSON Schema, allowing the application to extract the structured arguments directly rather than attempting to recover JSON from ordinary prose. For current implementations, adding strict: true to the tool definition provides guaranteed conformance of tool-call inputs to the declared schema. ( https://docs.anthropic.com/en/docs/agents-and-tools/tool-use/implement-tool-use )

Options A, B, and D remain prompt-based formatting techniques. They may improve the probability of valid JSON, but none creates the same schema-enforced interface. Prefilling an opening brace constrains the beginning of the response without guaranteeing valid field names, required properties, or data types. Retry logic detects failures only after generation and adds latency. Detailed formatting instructions can still produce malformed or structurally incorrect output.

Anthropic now also provides Structured Outputs for direct, schema-validated JSON responses. Within the options presented, however, a schema-defined tool is the only approach that establishes an explicit structured-output boundary rather than relying primarily on text-generation compliance. ( https://docs.anthropic.com/en/docs/test-and-evaluate/strengthen-guardrails/increase-consistency )

Official references/topics: Tool Definitions, JSON Schema Input Contracts, Strict Tool Use, Structured Outputs.

Option D supplies the missing repository-specific knowledge before Claude evaluates the code. The project’s CLAUDE.md should state that force-unwrapping is permitted within test paths, explain the coordinator-class architecture, and identify the internally maintained deprecated module as an approved dependency. These instructions should be concise and scoped carefully so exceptions do not become global permissions.

Anthropic’s CLAUDE.md documentation defines project CLAUDE.md files as persistent context for coding standards, architecture, workflows, and team conventions. They are loaded at the beginning of applicable sessions, preventing the organization from repeatedly supplying the same corrections. Anthropic also recommends recording information that Claude should know whenever it works in the repository.

Option A filters generated findings after tokens have already been consumed and can hide genuine issues containing similar terminology. Option B removes valuable surrounding context and would likely increase false positives and missed cross-file defects. Option C distributes project knowledge across individual source lines, creates maintenance overhead, and requires custom preprocessing. Centralized, narrowly scoped CLAUDE.md instructions address the root cause and improve the initial review judgment instead of repairing its output afterward.

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Option D addresses the observed inconsistency at the model-behavior level. A schema can require that materials be a string, but it cannot teach Claude which lexical form the application considers canonical or demonstrate when a source phrase should populate the field. Anthropic identifies examples as one of the most reliable ways to steer output format, structure, and consistency, recommending several relevant and diverse examples that mirror the real task in its prompting best practices . Complete input-output pairs show both recognition and normalization: for example, a description containing “60% cotton, 40% polyester” can consistently map to the chosen “cotton/polyester blend” representation. They can also include difficult cases where material information is embedded indirectly in prose. Temperature zero reduces sampling variability but does not repair an underspecified transformation rule. A more capable model likewise lacks the missing formatting convention. Making the field required is dangerous because documents may legitimately omit materials; it can force unsupported values and increase hallucinations. Few-shot examples therefore supply the missing decision boundary while preserving truthful absence handling. The examples should be evaluated on held-out descriptions and supplemented by deterministic post-processing if downstream systems require an exact controlled vocabulary.

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Forking the existing analysis session creates independent continuations that inherit the accumulated conversation context. Each branch begins with the same understanding of the service module, request flow, source files, and error-handling patterns, but subsequent work on one testing strategy does not alter the other branch or the original session.

Anthropic’s Agent SDK documentation states that sessions can be resumed with their full context and forked to explore different approaches. In the SDK, enabling fork_session while resuming causes the continuation to receive a new session identifier rather than modifying the original session. ( https://docs.anthropic.com/en/docs/claude-code/sdk?utm_source=chatgpt.com )

Option B wastes time, tokens, and tool calls by requiring both new sessions to rebuild the same 23-file analysis. Option C mixes two experimental implementations into one conversation, increasing the risk that assumptions, edits, or conclusions from the first strategy influence the second. Option D preserves only a manually selected summary, which may omit details contained in the full session history.

The appropriate design is to create one fork for the end-to-end strategy and another fork for the snapshot strategy. The original analysis remains a stable parent, while each child session develops and evaluates its approach independently.

Official references/topics: Agent SDK Sessions, Session Forking, Context Preservation, Alternative-Approach Evaluation.