akm-cli/dist/integrations/harnesses/claude/agent-builder.js

akm (Agent Knowledge Manager) — a portable, local-first capability library for AI agents. Discover, load, share, and improve reusable skills, scripts, workflows, and knowledge across any shell-capable coding agent, including Claude Code, OpenCode, and Cur

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at https://mozilla.org/MPL/2.0/.
/**
 * Claude Code agent command builder (migrated from `agent/builders.ts`, #563).
 *
 * Translates a platform-agnostic {@link AgentDispatchRequest} into the exact
 * argv the `claude` CLI expects. This is the Claude-specific slice of the
 * builder strategy; the shared infrastructure (`AgentCommandBuilder`,
 * `getCommandBuilder`, the OpenCode/default builders, flag/tool helpers) stays
 * in `agent/builders.ts`, which imports this builder back into
 * `BUILTIN_BUILDERS`.
 *
 * ## Structured output
 *
 * For a schema-bearing request this builder emits `--output-format json`,
 * which wraps the run in a RESULT ENVELOPE
 * (`{"type":"result","result":"<final answer>","session_id":"…", …}`); the
 * shared request lowering has already appended the schema instruction to the
 * prompt. The envelope is unwrapped by `./result-extractor.ts`, and the
 * engine's shared `runStructured` retry-until-valid loop validates the
 * extracted text against the schema (hinted output is trusted but verified).
 * Without a schema the argv carries no output flag.
 *
 * Claude Code 2.1.283 also has `--json-schema <schema>` (JSON Schema for
 * structured output validation, with `--print`). akm does not pass it; the
 * instruction and the validation loop above are what enforce a schema.
 *
 * The builder's `platform` stays `'claude'` (the canonical harness id).
 */
import { modelFromArgs, normalizeTools, resolveDispatchModel, } from "../../agent/builder-shared.js";
import { createAgentRequestLowerer } from "../../agent/request-lowering.js";
/** The model-work tool policy on Claude Code: read, edit in the working directory, `akm search`, `akm show`. */
export const MODEL_WORK_CLAUDE_FLAGS = Object.freeze([
    "--restricted",
    "--strict-mcp-config",
    "--tools",
    "Read,Edit,Bash",
    "--allowedTools",
    "Read,Edit,Bash(akm search *),Bash(akm show *)",
    "--permission-mode",
    "dontAsk",
]);
/**
 * Claude Code builder.
 * Command shape:
 *   claude [--agent <name>] [--system-prompt "..."] [--model <m>] [--allowedTools <t>]
 *          [--output-format json] --print -- "<prompt>"
 *
 * --print switches Claude Code to non-interactive captured output mode.
 *
 * The model-work tool policy lowers to {@link MODEL_WORK_CLAUDE_FLAGS} in place
 * of the engine's `args` and `--allowedTools`, verified against Claude Code
 * 2.1.283 and a local stub:
 *   - `--restricted` ignores the user, project and local settings files (whose
 *     allow rules would otherwise pre-approve any command or path) and confines
 *     the file tools to the working directory;
 *   - `--strict-mcp-config` starts no MCP server, and `--tools` offers only
 *     Read, Edit and Bash;
 *   - `--allowedTools` pre-approves Read, Edit, `akm search` and `akm show`,
 *     and `--permission-mode dontAsk` denies everything else instead of
 *     prompting, including a compound, redirected or substituted command.
 * The engine's `args` are left out because `--add-dir`, `--settings` or a
 * second `--allowedTools` would widen that. Only the model they name is kept.
 */
export const claudeBuilder = {
    platform: "claude",
    personaChannel: "native",
    lower: createAgentRequestLowerer({
        adapter: "claude",
        personaChannel: "native",
        nativeAgentSelector: true,
        tools: "all",
    }),
    build(profile, req) {
        const modelWork = req.modelWork === true;
        const args = modelWork ? [...MODEL_WORK_CLAUDE_FLAGS] : [...profile.args];
        if (req.agent) {
            args.push("--agent", req.agent);
        }
        if (req.systemPrompt) {
            args.push("--system-prompt", req.systemPrompt);
        }
        if (req.model) {
            const resolved = resolveDispatchModel(req, profile, "claude");
            args.push("--model", resolved);
        }
        else if (modelWork) {
            const model = modelFromArgs(profile.args);
            if (model)
                args.push("--model", model);
        }
        if (req.tools) {
            args.push("--allowedTools", normalizeTools(req.tools));
        }
        if (req.schema) {
            // Structured unit: request the documented JSON result envelope so
            // `./result-extractor.ts` can pull the final answer + session id.
            args.push("--output-format", "json");
        }
        // --print = non-interactive, outputs to stdout — required for captured mode
        args.push("--print");
        args.push("--");
        args.push(req.prompt);
        return { argv: [profile.bin, ...args] };
    },
};