import type { A2aServerSpec, McpServerSpec } from "@sema-agent/core";
import type { CenterMcp, ScopedA2aPeer } from "../config-types.js";
import type { Logger } from "../observability/logger.js";
import type { LoadedSkill } from "../capabilities/skills.js";
import type { CenterA2aPeer, CenterMcpServer, CenterSkillManifest } from "./types.js";
/**
 * Merge center skills OVER the image baseline ([ref]-sibling B1; `sema-registry docs/MCP-SKILLS.md`). Load order =
 * `loadSkills(SKILLS_DIR)` baseline → center skills lazily fetched by hash and overlaid BY NAME (center
 * wins on a clash → can override a built-in; guarded center-side by publisher RBAC + the publish gate).
 * `enabled:false` is skipped. Content is verified + cached by hash (same hash fetched once). A skill whose
 * content fetch/verify fails is skipped (the baseline version, if any, stays) — never blocks startup.
 * Restart-to-apply: this runs at boot, before `buildScenarios` bakes skills into scenarios.
 */
export declare function applyCenterSkills(baseline: LoadedSkill[], manifest: {
    skills: CenterSkillManifest[];
}, baseUrl: string, token: string, logger?: Logger, fetchImpl?: typeof fetch, 
/** LKG 姊妹面(clay 拍 2026-07-18):skill 正文的 content-addressed 盘缓存目录。读序=内存→盘(验
 *  hash,坏文件忽略)→中心(成功后 best-effort 回写)。让 LKG-boot 在中心不可达时不再于正文拉取上
 *  挂数秒(live 实测黑洞 +5.3s/skill 批),顺带省正常 refresh 的重复拉取。undefined=无盘缓存(原行为)。 */
diskCacheDir?: string): Promise<LoadedSkill[]>;
/**
 * Resolve center MCP servers (`/effective.mcp`) into core `McpServerSpec`s + the scenarios each applies to.
 * env-NAME refs → real values from THIS service's env (secret boundary unchanged); a server with any missing
 * ref is skipped (`resolveRefs` → null). `enabled:false` skipped. Restart-to-apply (filtered per scenario in
 * `resolveSpec` via `mcpForScenario`).
 */
export declare function resolveMcpServers(mcp: {
    servers: CenterMcpServer[];
}, logger?: Logger): CenterMcp;
/** The MCP servers applicable to a scenario: tagged with it, or untagged (global). undefined when none.
 *  [ref]:alias 窗撤销,单键命中(同 `skillsForScenario`)。 */
export declare function mcpForScenario(center: CenterMcp | undefined, scenario: string): McpServerSpec[] | undefined;
/**
 * DESIGN-269 §2.1 —— resolve center A2A peers (`/effective.a2a`) into core `A2aServerSpec`s + the scenarios
 * each applies to. Exact sibling of {@link resolveMcpServers}, same three rules:
 *   · header-NAME refs → real values from THIS service's env (the secret boundary is unchanged — the center
 *     never holds the bearer). A peer with ANY missing ref is SKIPPED wholesale (`resolveRefs` → null):
 *     dialing a remote AGENT with half the credentials is the wrong failure direction.
 *   · `enabled:false` skipped.
 *   · restart-to-apply (filtered per scenario in `resolveSpec` via {@link a2aForScenario}).
 *
 * ⚠️ **No `toolAxes` on the center face, deliberately** (this is where the A2A lane STOPS mirroring MCP):
 * core's ruling is that a caller override is the ONLY trusted way down from the fail-closed
 * `egress:true`+`effect:"write"` default, and it names the CALLER as that trust root. An operator lowering
 * an axis in center config would be vouching, on behalf of every future task, that a REMOTE agent's skill
 * only reads — a claim the operator cannot actually verify and which core's own doc-comment reserves for
 * the caller. Absent face > a face that quietly launders trust. (`allowSkills` is the operator's real
 * knob here: narrow WHAT mounts, never re-label what it does.)
 */
export declare function resolveA2aPeers(a2a: {
    peers: CenterA2aPeer[];
}, logger?: Logger): ScopedA2aPeer[];
/** The A2A peers applicable to a scenario: tagged with it, or untagged (global). undefined when none.
 *  Twin of {@link mcpForScenario} — `undefined` (not `[]`) is load-bearing: an empty array would put an
 *  `a2a: []` key on the spec, i.e. "this deployment declares an empty peer set", where absence means
 *  "this leg does not exist here". */
export declare function a2aForScenario(peers: ScopedA2aPeer[] | undefined, scenario: string): A2aServerSpec[] | undefined;
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