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s9ebad823dfee1674I'm investigating whether this codebase (Lore, a memory architecture for AI coding agents that acts as an LLM proxy) supports the X-Session-Id HTTP header for sticky routing.
Please do a thorough search and report back:
Search for any references to "X-Session-Id", "session-id", "sessionId", "session_id", "x-session" (case-insensitive) across the entire codebase, especially in:
Look at how HTTP headers are read/parsed in the gateway server (packages/gateway/src/server.ts and packages/gateway/src/pipeline.ts). What headers does the proxy currently inspect or forward?
How does the system currently identify/track a "session"? Search for "session" usage broadly - how are sessions created, identified, and associated with requests? Is there a concept of session ID already?
Look at packages/opencode/src/index.ts to understand how the OpenCode plugin identifies sessions.
For each finding, report the exact file path and line numbers, plus a short code excerpt. Be thorough and comprehensive. I need to know definitively whether X-Session-Id header handling exists today.
I'll search through the codebase systematically to track down these references.
I'll do a thorough search across the codebase. Let me start with multiple parallel searches.
OpenCode said they added a new X-Session-Id header for sticky routing which we can also use. Do we already support this?
No plan file exists yet. You should create your plan at /home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/.opencode/plans/1781132449720-glowing-canyon.md using the write tool. You should build your plan incrementally by writing to or editing this file. NOTE that this is the only file you are allowed to edit - other than this you are only allowed to take READ-ONLY actions.
Goal: Gain a comprehensive understanding of the user's request by reading through code and asking them questions. Critical: In this phase you should only use the explore subagent type.
Focus on understanding the user's request and the code associated with their request
Launch up to 3 explore agents IN PARALLEL (single message, multiple tool calls) to efficiently explore the codebase.
I need to check whether the codebase already has support for the X-Session-Id header that OpenCode added for sticky routing, so I'm going to explore the relevant parts of the codebase to see how headers and session routing are currently implemented.
I'll investigate whether the codebase already handles the X-Session-Id header for sticky routing. Let me explore the relevant areas.
Found 2 matches /home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/quality/RUN_INTEGRATION_TESTS.md: Line 256: 1. Send request with `x-session-id: test-session-001` header /home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/quality/EXPLORATION.md: Line 93: - **Primary path:** Known session headers (`extractKnownSessionHeader` at `packages/gateway/src/session.ts:279`) — deterministic from `x-session-id` etc.
Found 614 matches (more matches available) /home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/.lore.md: Line 29: * **Sub-agent session detection, isolation, and differential treatment**: Sub-agent session detection via \`x-parent-session-id\` header (pipeline.ts). Each sub-agent gets independent session: temporal storage, gradient state, distillation pipeline, LTM injection, cost tracking. Key differential treatment: (1) cache warming ALWAYS skipped — \`shouldWarm()\` returns false unconditionally; (2) \`findRotationPredecessor()\` skips sub-agents from Tier 1b rotation; (3) idle distillation/curation runs normally. \`isSubagent\`/\`parentSessionId\` persisted to DB (migration v26). Dashboard: collapsible cost-rollup tree via \`loadParentChildMap()\` + \`buildLiveSessionRows()\`; \`rollUp()\` propagates grandchildren costs bottom-up. \*\*Gap\*\*: OpenCode plugin \`chat.headers\` hook does NOT set \`x-parent-session-id\` — gateway can't ...
Found 4417 matches (more matches available) /home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/vitest.evals.config.ts: Line 6: // Evals are slow — generous timeouts for gateway startup, session replay, Line 9: hookTimeout: 1_800_000, // 30 min for beforeAll (session replay) /home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/core/test/cross-project-gating.test.ts: Line 8: // relevant to PROJ_B's session. Line 37: session: "s", Line 47: session: "s", Line 60: session: "s", Line 73: session: "s", Line 100: session: "s", Line 131: session: "s", Line 142: session: "s", Line 145: // No sessionID + no contextHint → the no-context fallback path. Line 166: session: "s", Line 180: session: ...
I need to dig into the session extraction logic, particularly the extractKnownSessionHeader function in the gateway's session file, and trace through how it connects with the pipeline and server setup.
There's a dedicated session.ts file in the gateway. Let me read the key files in detail.
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/session.ts</path> <type>file</type> <content> 1: /** 2: * Session identification for the Lore gateway proxy. 3: * 4: * Uses a 3-tier identification strategy: 5: * 6: * **Tier 1 — Known headers** (immediate match): 7: * `x-lore-session-id` (Lore plugins: OpenCode, Pi — stable, deterministic), 8: * `x-claude-code-session-id` (Claude Code), `x-session-affinity` 9: * (OpenCode native — volatile, regenerated on restart). Checked in 10: * priority order; stable headers win over volatile ones. 11: * 12: * **Tier 2 — Learned headers** (bootstrapped via fingerprint): 13: * During the first few fingerprinted turns, collect candidate `x-` 14: * headers with ID-like values. ...
Looking at the session headers in the codebase, I see there are three explicitly defined ones: x-lore-session-id, x-claude-code-session-id, and x-session-affinity. But there's also a pattern-based approach for Tier 2 headers that matches anything starting with x- and containing "session" while excluding token, cookie, auth, or secret variants — which means x-session-id would qualify as a candidate even though it's not in the known headers list.
Let me trace through the pipeline and server code to see how session extraction actually works and check the test cases around x-my-session to understand the full detection logic.
No x-session-id in the Tier 1 known list. Let me examine the pipeline session resolution, the server header handling, and the OpenCode plugin.
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/pipeline.ts</path>
<type>file</type>
<content>
1380: formatted: persisted.ltmPinText,
1381: tokenCount: persisted.ltmPinTokens,
1382: });
1383: }
1384: sessions.set(sessionID, state);
1385: }
1386: state.prevRequestTime = state.lastRequestTime;
1387: state.lastRequestTime = Date.now();
1388:
1389: // Ensure recallStore exists (upgrade from older session state)
1390: if (!state.recallStore) {
1391: state.recallStore = new Map();
1392: }
1393: // Ensure upstreamByProvider exists (upgrade from older session state)
1394: if (!state.upstreamByProvider) {
1395: state.upstreamByProvider = new Map();
1396: }
1397:
1398: return state;
1399: }
1400:
1401: /**
1402: * Identify or create a session from the incoming request.
1403: *
1404: * Uses a multi-tier strategy:
1405: * 1. ...
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/opencode/src/index.ts</path>
<type>file</type>
<content>
1: import type { Plugin, Hooks } from "@opencode-ai/plugin";
2: import {
3: log,
4: getGitRemote,
5: discoverWorkspaceRoot,
6: installFetchInterceptor,
7: } from "@loreai/core";
8:
9: /**
10: * Lore plugin for OpenCode — transparent LLM proxy routing.
11: *
12: * Instead of overwriting provider baseURLs (which loses original auth and
13: * URL context), this plugin installs a fetch-level interceptor that
14: * transparently reroutes outgoing LLM API calls through the Lore gateway.
15: * The SDK builds requests normally (correct auth, correct URL for each
16: * provider), and the interceptor redirects them while preserving all
17: * original headers. The gateway forwards non-managed headers upstream.
18: *
19: * Per-request context (session ID, agent name, provider ID) is injected
20: * via the ...
So the OpenCode plugin injects x-lore-session-id from the OpenCode database session ID, not x-session-id. Now I need to trace how the server parses and forwards these headers through the pipeline, particularly looking at the raw header handling and any stripping logic before requests go upstream.
Now let me examine the server's header handling and how headers are forwarded/stripped upstream.
Found 102 matches (more matches available) /home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/pipeline.ts: Line 1405: * 1. **Known headers** — `x-lore-session-id` (stable, checked first), Line 1518: const headers = req.rawHeaders; Line 1538: // x-lore-session-id), but the request also contains a lower-priority Line 1665: const cred = extractAuth(req.rawHeaders); Line 1762: const headerUpstream = extractUpstreamUrlHeader(req.rawHeaders); Line 1763: const providerID = extractProviderHeader(req.rawHeaders); Line 1817: const routingAuth = extractAuth(req.rawHeaders); Line 2872: // Skip temporal storage in amnesia mode or when x-lore-no-store is set. Line 2880: sessionState.amnesia || req.rawHeaders["x-lore-no-store"] === "true"; Line 3048: const lpProvider = extractProviderHeader(req.rawHeaders); Line 3050: const lpHeaderUpstream = ...
Found 16 matches
/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/server.ts:
Line 60: response.headers.set(key, value);
Line 117: const upgrade = req.headers.get("upgrade");
Line 119: const connection = req.headers.get("connection");
Line 136: resp.headers.set("Connection", "close");
Line 157: gatewayReq = parseAnthropicRequest(body, headersToRecord(req.headers));
Line 188: const apiKey = req.headers.get("x-api-key");
Line 189: const auth = req.headers.get("authorization");
Line 190: if (apiKey) headers["x-api-key"] = apiKey;
Line 193: const anthropicVersion = req.headers.get("anthropic-version");
Line 194: if (anthropicVersion) headers["anthropic-version"] = anthropicVersion;
Line 198: headers[key] = value;
Line 211: headers: new Headers(upstream.headers),
Line 237: gatewayReq = parseOpenAIRequest(body, ...
I need to examine the header management logic in those two files to understand how headers are being handled and forwarded.
Let me look at the header forwarding logic and the server's header parsing.
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/translate/types.ts</path> <type>file</type> <content> 545: 546: /** 547: * Headers that the gateway manages itself — never forwarded from the client. 548: * Auth headers are listed because each request builder handles them 549: * explicitly (extractAuth + authHeaders) to preserve the correct scheme. 550: */ 551: const GATEWAY_MANAGED_HEADERS = new Set([ 552: // HTTP framing 553: "content-type", 554: "content-length", 555: "host", 556: "connection", 557: "transfer-encoding", 558: "accept-encoding", 559: // Lore-specific (injected by fetch interceptor / plugin hooks) 560: "x-lore-provider", 561: "x-lore-upstream-url", 562: "x-lore-session-id", 563: "x-lore-project", 564: "x-lore-git-remote", 565: "x-lore-agent", 566: "x-lore-no-store", 567: "x-lore-recall-invoked", 568: // Protocol version — set explicitly by each builder 569: ...
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/server.ts</path>
<type>file</type>
<content>
140: // ---------------------------------------------------------------------------
141: // Route handlers
142: // ---------------------------------------------------------------------------
143:
144: async function handleAnthropicMessages(
145: req: Request,
146: config: GatewayConfig,
147: ): Promise<Response> {
148: let body: unknown;
149: try {
150: body = await req.json();
151: } catch {
152: return errorResponse(400, "invalid_request_error", "Invalid JSON body");
153: }
154:
155: let gatewayReq: GatewayRequest;
156: try {
157: gatewayReq = parseAnthropicRequest(body, headersToRecord(req.headers));
158: } catch (e) {
159: const msg = e instanceof Error ? e.message : "Failed to parse request";
160: return errorResponse(400, "invalid_request_error", msg);
161: }
162:
163: ...
I need to check how headersToRecord normalizes header cases in server.ts.
Let me find headersToRecord and check the test file for the "x-my-session" learned-header behavior to confirm how generic session headers are treated.
Found 4 matches
/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/server.ts:
Line 70: function headersToRecord(headers: Headers): Record<string, string> {
Line 157: gatewayReq = parseAnthropicRequest(body, headersToRecord(req.headers));
Line 237: gatewayReq = parseOpenAIRequest(body, headersToRecord(req.headers));
Line 271: headersToRecord(req.headers),
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/test/session.test.ts</path>
<type>file</type>
<content>
420: });
421: });
422:
423: // ===========================================================================
424: // Tier 2: Header learning helpers
425: // ===========================================================================
426:
427: describe("isSessionHeaderName", () => {
428: test("matches session-related header names", () => {
429: expect(isSessionHeaderName("x-session-affinity")).toBe(true);
430: expect(isSessionHeaderName("x-my-session-id")).toBe(true);
431: expect(isSessionHeaderName("x-custom-session")).toBe(true);
432: expect(isSessionHeaderName("x-client-session-key")).toBe(true);
433: });
434:
435: test("matches affinity-related header names", () => {
436: expect(isSessionHeaderName("x-affinity")).toBe(true);
437: ...
Let me read headersToRecord to confirm header case-normalization, since that determines whether X-Session-Id would be lowercased to match patterns.
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/packages/gateway/src/server.ts</path>
<type>file</type>
<content>
50:
51: const CORS_HEADERS: Record<string, string> = {
52: "access-control-allow-origin": "*",
53: "access-control-allow-methods": "GET, POST, DELETE, OPTIONS",
54: "access-control-allow-headers": "*",
55: "access-control-max-age": "86400",
56: };
57:
58: function withCors(response: Response): Response {
59: for (const [key, value] of Object.entries(CORS_HEADERS)) {
60: response.headers.set(key, value);
61: }
62: return response;
63: }
64:
65: // ---------------------------------------------------------------------------
66: // Helpers
67: // ---------------------------------------------------------------------------
68:
69: /** Convert a Web Headers object to a plain Record<string, string>. ...
The Web Headers object automatically lowercases header names per the Fetch spec, so X-Session-Id becomes x-session-id when it arrives in headersToRecord. I should check the quality markdown files that reference this header—they look like exploration and planning documents, particularly EXPLORATION.md around line 93 and the integration test and contracts documentation.
Looking at my grep results, the pattern [xX]-?[sS]ession-?[iI]d only matched two instances, both in the quality markdown docs. The actual source and test code don't contain x-session-id literally—the closest matches in tests are variations like x-claude-code-session-id, x-session-affinity, x-lore-session-id, and x-my-session-id. Let me do a precise search for the exact string x-session-id to confirm it's not appearing anywhere in the codebase.
Let me do a precise search for the exact literal x-session-id string and check the quality docs that reference it.
quality/RUN_INTEGRATION_TESTS.md:256:1. Send request with `x-session-id: test-session-001` header quality/EXPLORATION.md:93:- **Primary path:** Known session headers (`extractKnownSessionHeader` at `packages/gateway/src/session.ts:279`) — deterministic from `x-session-id` etc.
<path>/home/byk/.local/share/opencode/worktree/51d1015fd1f616acf9a5ffaad9331ec6b304586b/clever-circuit/quality/EXPLORATION.md</path> <type>file</type> <content> 80: - **Fallback 2:** LIKE-based search in `packages/core/src/ltm.ts:272-274` and `packages/core/src/ltm.ts:366-368` catches FTS5 syntax errors 81: - **Parity gap:** The LIKE fallback loses ranking (BM25 scores) and prefix matching. Results are unranked, which degrades `forSession()` relevance scoring. The fallback is correct (doesn't crash) but produces lower-quality results silently — the caller has no signal that FTS5 failed. 82: - **Candidate requirement:** REQ-SEARCH-001: FTS5 fallback to LIKE SHOULD propagate a degradation signal so callers can log or adjust scoring behavior. 83: 84: ### Port fallback in gateway startup 85: - **Primary path:** Explicit port via `--port` flag at `packages/gateway/src/cli/start.ts:97` 86: - **Fallback 1:** Port 3207 (well-known) at `start.ts:98` 87: - **Fallback 2:** Port 5673 (alternate) ...
The x-session-id references in those documentation files are just illustrative examples, not actual implementations. I need to verify what the real session header constant is in the codebase.
Looking at the actual known session headers — x-lore-session-id, x-claude-code-session-id, x-session-affinity — there's no exact x-session-id. But the pattern-matching system would catch it as a Tier 2 learned header since it matches the session header regex and doesn't contain excluded keywords like "token" or "auth". So x-session-id could become a recognized session identifier after three stable turns with cross-session uniqueness validation.
The session identification itself is separate from routing — the actual upstream selection is driven by x-lore-provider and x-lore-upstream-url, not by session headers. Let me verify if there's any sticky routing behavior tied to sessions. ...
I now have a complete and definitive picture. Here is my comprehensive report.
X-Session-Id Header Support in LoreThere is NO dedicated handling for an exact X-Session-Id / x-session-id HTTP header anywhere in the actual source or test code. The string x-session-id appears literally only twice in the entire repo, both in planning/QA Markdown docs under quality/ — never in packages/.
That said, an inbound x-session-id header would not be entirely ignored: it would be picked up by the Tier 2 "learned headers" heuristic (because its name matches the session-header regex), but only after 3 stable turns + a cross-session uniqueness check. It is not in the deterministic Tier 1 known-header list, so it provides no immediate sticky routing today.
x-session-id / session-id / sessionId / session_id / x-sessionx-session-id — only in docs, never in code/clever-circuit/quality/RUN_INTEGRATION_TESTS.md:256 — 1. Send request with x-session-id: test-session-001 header (a proposed test scenario)/clever-circuit/quality/EXPLORATION.md:93 — ...deterministic from x-session-id etc. (illustrative example, not a real header name)A precise rg -i '\bx-session-id\b' across the whole repo (excluding node_modules) returns only those two Markdown hits. No .ts source or test file contains the literal x-session-id.
packages/gateway/src/session.ts:267-271 — the canonical Tier 1 list:
export const KNOWN_SESSION_HEADERS = [
"x-lore-session-id", // Lore plugins (stable, deterministic) — checked first
"x-claude-code-session-id", // Claude Code (UUID, persists for CLI session)
"x-session-affinity", // OpenCode (nanoid, volatile — regenerated on restart)
] as const;
Note: x-session-id is not in this list. ...