diff --git a/README.md b/README.md index bfcca5117..a761716e7 100644 --- a/README.md +++ b/README.md @@ -616,6 +616,7 @@ Most `analyze` knobs are also CLI flags (`--workers`, `--worker-timeout`, `--max | `GITNEXUS_VERBOSE` | unset | When `1`, enables verbose ingestion logs (skipped-file warnings, per-chunk throughput, parse-cache stats). Equivalent to `--verbose`. | Debugging an analyze that "completed" but seems to have missed files; tuning `--workers` / chunk concurrency against observable throughput. | | `GITNEXUS_EMBEDDING_RETRY_TIMEOUTS` | unset | When truthy (`1`/`true`/`yes`), per-attempt HTTP embedding timeouts (`TimeoutError` on fetch or body read) go through the bounded `GITNEXUS_EMBEDDING_MAX_ATTEMPTS` retry loop instead of failing the job. Any other value leaves it off, so cloud/default timeouts remain terminal. | Local accelerators that drop a device lock when the client disconnects and succeed on the next request (observed with FastFlowLM on Ryzen AI). | | `GITNEXUS_EMBEDDING_SIDECAR_TIMEOUT_MS` | `180000` (3 minutes) | Per-request IPC timeout for local embedding sidecar embed batches. On overrun the parent SIGKILLs the sidecar child and rejects the batch. Init still uses the HF download budget (`HF_DOWNLOAD_TIMEOUT_MS` × attempts), not this knob. | Large embed batches or slow local ONNX inference cause sidecar request timeouts during `analyze --embeddings`, `embeddings sync`, serve, or MCP. | +| `GITNEXUS_VECTOR_MAX_DISTANCE` | `0.6` for CLI/MCP `query`; `0.5` for standalone semantic search | Maximum cosine distance for vector hits, applied to both indexed search and exact-scan fallback. Hits must have `distance < cutoff`. Unset/blank uses the default; non-numeric, non-finite, zero, or negative values warn and use the default; finite values above `2` warn and clamp to `2`. | Paraphrased queries have weak semantic recall with your embedding model. See [Vector cutoff tuning](#vector-cutoff-tuning). | | `GITNEXUS_ANALYZER_IDENTITY_IN_PROCESS_GUARDS` | unset | When truthy (`1`/`true`/`yes`), forces in-process cache-guard validation once a batch has ≥128 requests. In-process mode also auto-selects when `packageRoot`/`buildRoot` fail `W_OK` with `EACCES`/`EROFS`. Otherwise those large batches use a Node subprocess probe. Batches under 128 always stay in-process. | Trusted or read-only installs where two identity subprocess spawns per analyze dominate wall time; leave unset to keep the default isolation path on writable trees. | | `GITNEXUS_RESOLVE_DEF_GRAPH_ID_MEMO` | on (unset) | Memoizes `resolveDefGraphId` per `nodeLookup` instance (WeakMap). Enabled by default. Set to `0`/`false`/`off`/`no` to disable and recompute on every call (debug / bisect memo bugs). | Suspecting stale graph-id resolution after a lookup rebuild, or comparing memo vs uncached cost on a large index. | | `GITNEXUS_AUTH_TOKEN` | unset | Bearer token required when `eval-server` binds beyond loopback. May also be read from `.env.local` or `.env`; shell values take precedence. | Exposing the evaluation HTTP tools to a container, VM, or LAN. | @@ -655,6 +656,22 @@ Most `analyze` knobs are also CLI flags (`--workers`, `--worker-timeout`, `--max | `GITNEXUS_PUBLIC_ORIGIN` | unset | The single browser origin `serve` is reached through, added to the CORS allowlist and to the write-route origin guard. A wildcard bind (`0.0.0.0`) has no host identity, so without this the server's own UI is refused. **Setting it currently refuses to start:** `serve` has no authentication, requests carrying no `Origin` header already reach `POST /api/analyze` and `DELETE /api/repo`, and this is the setting that would admit browser writes on top of that. Matching rules for when the gate lifts: the hostname must match exactly, and so must the scheme. A value with no scheme (`app.example.com`) means `https`, since a bare host comes from platform service discovery and those terminate TLS; spell out `http://app.example.com` for plain HTTP. An explicit port must match; with no port, any port on that hostname is accepted. Anything that is not one reachable host (a list, `*`, a bare port number, a `:0` port, a trailing dot) warns at startup and allows nothing. | `gitnexus serve` runs behind a reverse proxy or on a wildcard bind, and the UI's index/delete requests return `origin_not_allowed`. | | `GITNEXUS_TRUST_PROXY` | `loopback, linklocal, uniquelocal` | Express `trust proxy` value — which upstream hops may set `X-Forwarded-*`, and so what the per-IP rate limiter reads as the client IP. Set it to the exact number of proxies you control. Every hop past that is one more entry of the chain the caller gets to write. `false`/`no`/`off` (and a `0` hop count) trust no hop; a proxy list Express can compile (`loopback`, `10.0.0.0/8, 127.0.0.1`) names them instead. `true`/`yes`/`on` is **rejected**: it reads the client-controlled leftmost `X-Forwarded-For` entry, so a spoofed chain earns a fresh rate-limit key per request, and express-rate-limit rejects it too (`ERR_ERL_PERMISSIVE_TRUST_PROXY`). Counts above `16` are rejected as well, as a sanity ceiling rather than a safety boundary. Any invalid value warns and falls back to the default. Bind non-loopback with this unset and `serve` warns: a load balancer outside the private ranges is untrusted, so every request keys to the balancer and the per-IP limit becomes one shared limit. | `serve` sits behind a load balancer outside the private ranges (AWS ALB, Cloudflare, CGNAT), where every request otherwise collapses to the proxy hop and rate limiting goes global. | +### Vector cutoff tuning + +`GITNEXUS_VECTOR_MAX_DISTANCE` controls which vector candidates enter hybrid search. Cosine distance is lower for more similar vectors; the appropriate cutoff depends on the embedding model and repository. A higher cutoff can recover useful semantic matches, but can also admit less relevant hits and change the fused ranking. The default is `0.6` for CLI and MCP `query`, and `0.5` for the standalone semantic-search function. + +For an index that already has embeddings, compare the default with `0.8` and `1.0` on representative queries, including paraphrases, exact symbol names, and queries that should have no relevant result: + +```bash +GITNEXUS_VECTOR_MAX_DISTANCE=0.8 gitnexus query "how are expired sessions removed" --limit 10 +``` + +Check both whether the expected symbols appear and where they rank. In [#3457](https://github.com/abhigyanpatwari/GitNexus/issues/3457), the reporter's `voyage-code-4` sample found 20 of 32 paraphrased targets at `0.6`, 25 at `0.8`, and 28 at `1.0`. Those values are a tuning starting point for that model, not universal recommendations: one paraphrased target fell from first to twelfth at `1.0`. The sample covered eight repositories, recorded no raw distances, used agent-written queries after reading the code, and did not send Voyage's `input_type`. + +Set the variable in the process that runs the search. For MCP, add it to the server's launch environment and restart the server; for `gitnexus serve`, set it in that process's environment and restart it. Setting it only during `analyze`, or exporting it in another shell, does not configure an existing server. Changing the cutoff requires no reindex. + +The cutoff only filters available vector candidates. It cannot add missing embeddings or repair a mismatch between the indexing and query-time embedding configuration; see the [embeddings runbook](RUNBOOK.md#embeddings). A cutoff of `2` is very permissive, but still rejects distance exactly `2` and retains the search candidate limits. +
diff --git a/RUNBOOK.md b/RUNBOOK.md index 2f2c06f14..e2e1de94c 100644 --- a/RUNBOOK.md +++ b/RUNBOOK.md @@ -87,6 +87,14 @@ npx gitnexus analyze --force If it recurs, the cause is almost always environmental rather than a code defect: check free disk space on the volume holding `.gitnexus/`, make sure no second `analyze` is running against the same repo (both use `.gitnexus/csv` for staging), then run `npx gitnexus doctor`. The check compares in-memory relationship totals (including streamed rows) against what the DB hands back, and is deliberately skipped on incremental runs, where the two counts are not comparable. +**Weak semantic recall despite existing embeddings:** If paraphrased queries look like keyword-only search, the distance cutoff may be too strict for the embedding model. CLI and MCP `query` default to `0.6`. From the indexed repository, try a broader cutoff: + +```bash +GITNEXUS_VECTOR_MAX_DISTANCE=0.8 npx gitnexus query "how are expired sessions removed" --limit 10 +``` + +Compare target inclusion and ranking against the default; a broader cutoff also admits less relevant hits. Set the variable in the MCP/serve launch environment and restart that process when tuning a server. A cutoff change needs no reindex and setting it only during `analyze` does not persist it. If the index has no vectors, generate embeddings first; if the embedding model or dimensions differ between indexing and querying, align that configuration and regenerate vectors. See [Vector cutoff tuning](README.md#vector-cutoff-tuning) for validation rules and the limited `voyage-code-4` evidence from #3457. + **Large repos:** Analyze may skip or limit embedding work when node counts are very high; watch CLI output. --- diff --git a/gitnexus/src/cli/i18n/en.ts b/gitnexus/src/cli/i18n/en.ts index 15114ab41..8cedc843f 100644 --- a/gitnexus/src/cli/i18n/en.ts +++ b/gitnexus/src/cli/i18n/en.ts @@ -430,5 +430,5 @@ export const en = { 'help.identityCache.environment': '\nAnalyzer identity cache:\n GITNEXUS_ANALYZER_IDENTITY_CACHE_DIR=/absolute/protected/dir\n Operator-trusted persistent cache for warm cross-process status. The directory must pre-exist, be outside the GitNexus package/build roots, and contain no symlink or junction components. Defaults remain fail-closed on platforms without POSIX ownership APIs.', 'help.analyze.environment': - '\nEnvironment variables:\n GITNEXUS_NO_GITIGNORE=1 Skip .gitignore parsing (still reads .gitnexusignore)\n GITNEXUS_MAX_FILE_SIZE=N Override large-file skip threshold (KB). Default 512, max 32768.\n GITNEXUS_STORAGE_PATH=/absolute/index Complete external index directory. Preserves the existing configuration semantics and overrides GITNEXUS_STORAGE_ROOT when both are set.\n GITNEXUS_STORAGE_ROOT=/absolute/root External index root; each repository uses an isolated -/ slot.\n GITNEXUS_CONTENT_RETENTION=full Source-text retention profile: full, symbol, or none. Default full.\n GITNEXUS_ANALYZER_IDENTITY_CACHE_DIR=/absolute/protected/dir Operator-trusted persistent analyzer identity cache; must pre-exist, be outside package/build roots, and contain no symlink/junction components.\n GITNEXUS_WORKER_SUB_BATCH_TIMEOUT_MS=N Worker idle timeout in milliseconds. Default 30000.\n GITNEXUS_WAL_CHECKPOINT_THRESHOLD=N LadybugDB WAL auto-checkpoint threshold in bytes (default 67108864 = 64 MiB; -1 keeps Ladybug stock ~16 MiB).\n GITNEXUS_WORKER_SUB_BATCH_MAX_BYTES=N Worker job byte budget. Default 8388608.\n GITNEXUS_WORKER_POOL_SIZE=N Parse worker count override. Default cores-1 capped at 16.\n GITNEXUS_PARSE_CHUNK_CONCURRENCY=N Concurrent in-flight parse chunks. Default 2.\n GITNEXUS_WORKER_MAX_RESPAWNS_PER_SLOT=N Max replacement spawns per slot before drop. Default 3.\n GITNEXUS_WORKER_MAX_CUMULATIVE_TIMEOUT_MS=N Total retry wall-time per job. Default 5x sub-batch timeout.\n GITNEXUS_WORKER_CONSECUTIVE_FAILURE_THRESHOLD=N Per-slot deaths to trip circuit breaker. Default max(3, poolSize).\n GITNEXUS_WORKER_SHUTDOWN_DRAIN_MS=N Max wait at pool shutdown for a retired worker still inside native code (terminated at its next safe point instead of aborting the process). Default 30000.\n GITNEXUS_CPP_CAPTURE_BUDGET_MS=N Per-file wall-clock budget for C++ capture extraction; on breach the file keeps partial captures with a warning. Default 20000.\n GITNEXUS_EMBEDDING_THREADS=N Limit local ONNX CPU threads for --embeddings.\n GITNEXUS_EMBEDDING_RETRY_TIMEOUTS=1 Retry per-attempt HTTP embedding timeouts through GITNEXUS_EMBEDDING_MAX_ATTEMPTS (default off; timeouts stay terminal).\n GITNEXUS_SEMANTIC_EXACT_SCAN_LIMIT=N Max embedding chunks for exact-scan fallback. Default 10000.\n GITNEXUS_VECTOR_MAX_DISTANCE=N Max accepted semantic/vector cosine distance (0 < N <= 2; higher values clamp to 2). Default 0.6 for MCP, 0.5 elsewhere.\n GITNEXUS_MAX_PROCESSES=N Process-detection process cap (positive integer). Replaces the dynamic max(20, round(symbols/10)) formula. Distinct from query-time IMPACT_MAX_CHUNKS.\n GITNEXUS_MAX_PROCESS_BRANCHING=N Process-detection per-node branching cap. Default 4.\n GITNEXUS_MAX_PROCESS_TRACE_DEPTH=N Process-detection DFS depth cap. Default 10.\n GITNEXUS_MAX_ENTRY_POINT_CANDIDATES=N Ranked entry-point candidate pool. Default 200. Raise when the warning names this knob; doubling is the usual first raise.\n\nCLI flags take precedence over `.gitnexusrc`, which takes precedence over env vars, which take precedence over built-in defaults.\n\nTip: `.gitnexusignore` supports `.gitignore`-style negation. Add e.g.\n `!__tests__/` to index a directory that is auto-filtered by default (#771).', + '\nEnvironment variables:\n GITNEXUS_NO_GITIGNORE=1 Skip .gitignore parsing (still reads .gitnexusignore)\n GITNEXUS_MAX_FILE_SIZE=N Override large-file skip threshold (KB). Default 512, max 32768.\n GITNEXUS_STORAGE_PATH=/absolute/index Complete external index directory. Preserves the existing configuration semantics and overrides GITNEXUS_STORAGE_ROOT when both are set.\n GITNEXUS_STORAGE_ROOT=/absolute/root External index root; each repository uses an isolated -/ slot.\n GITNEXUS_CONTENT_RETENTION=full Source-text retention profile: full, symbol, or none. Default full.\n GITNEXUS_ANALYZER_IDENTITY_CACHE_DIR=/absolute/protected/dir Operator-trusted persistent analyzer identity cache; must pre-exist, be outside package/build roots, and contain no symlink/junction components.\n GITNEXUS_WORKER_SUB_BATCH_TIMEOUT_MS=N Worker idle timeout in milliseconds. Default 30000.\n GITNEXUS_WAL_CHECKPOINT_THRESHOLD=N LadybugDB WAL auto-checkpoint threshold in bytes (default 67108864 = 64 MiB; -1 keeps Ladybug stock ~16 MiB).\n GITNEXUS_WORKER_SUB_BATCH_MAX_BYTES=N Worker job byte budget. Default 8388608.\n GITNEXUS_WORKER_POOL_SIZE=N Parse worker count override. Default cores-1 capped at 16.\n GITNEXUS_PARSE_CHUNK_CONCURRENCY=N Concurrent in-flight parse chunks. Default 2.\n GITNEXUS_WORKER_MAX_RESPAWNS_PER_SLOT=N Max replacement spawns per slot before drop. Default 3.\n GITNEXUS_WORKER_MAX_CUMULATIVE_TIMEOUT_MS=N Total retry wall-time per job. Default 5x sub-batch timeout.\n GITNEXUS_WORKER_CONSECUTIVE_FAILURE_THRESHOLD=N Per-slot deaths to trip circuit breaker. Default max(3, poolSize).\n GITNEXUS_WORKER_SHUTDOWN_DRAIN_MS=N Max wait at pool shutdown for a retired worker still inside native code (terminated at its next safe point instead of aborting the process). Default 30000.\n GITNEXUS_CPP_CAPTURE_BUDGET_MS=N Per-file wall-clock budget for C++ capture extraction; on breach the file keeps partial captures with a warning. Default 20000.\n GITNEXUS_EMBEDDING_THREADS=N Limit local ONNX CPU threads for --embeddings.\n GITNEXUS_EMBEDDING_RETRY_TIMEOUTS=1 Retry per-attempt HTTP embedding timeouts through GITNEXUS_EMBEDDING_MAX_ATTEMPTS (default off; timeouts stay terminal).\n GITNEXUS_SEMANTIC_EXACT_SCAN_LIMIT=N Max embedding chunks for exact-scan fallback. Default 10000.\n GITNEXUS_VECTOR_MAX_DISTANCE=N Max accepted semantic/vector cosine distance (0 < N <= 2; higher values clamp to 2). Default 0.6 for CLI/MCP query, 0.5 for standalone semantic search. Tune for your embedding model: higher values can improve recall but may reduce relevance. Set in the query/server environment; no reindex needed.\n GITNEXUS_MAX_PROCESSES=N Process-detection process cap (positive integer). Replaces the dynamic max(20, round(symbols/10)) formula. Distinct from query-time IMPACT_MAX_CHUNKS.\n GITNEXUS_MAX_PROCESS_BRANCHING=N Process-detection per-node branching cap. Default 4.\n GITNEXUS_MAX_PROCESS_TRACE_DEPTH=N Process-detection DFS depth cap. Default 10.\n GITNEXUS_MAX_ENTRY_POINT_CANDIDATES=N Ranked entry-point candidate pool. Default 200. Raise when the warning names this knob; doubling is the usual first raise.\n\nCLI flags take precedence over `.gitnexusrc`, which takes precedence over env vars, which take precedence over built-in defaults.\n\nTip: `.gitnexusignore` supports `.gitignore`-style negation. Add e.g.\n `!__tests__/` to index a directory that is auto-filtered by default (#771).', } as const; diff --git a/gitnexus/src/cli/i18n/zh-CN.ts b/gitnexus/src/cli/i18n/zh-CN.ts index 9519954d2..f333188b7 100644 --- a/gitnexus/src/cli/i18n/zh-CN.ts +++ b/gitnexus/src/cli/i18n/zh-CN.ts @@ -392,5 +392,5 @@ export const zhCN = { 'help.identityCache.environment': '\n分析器身份缓存：\n GITNEXUS_ANALYZER_IDENTITY_CACHE_DIR=/absolute/protected/dir\n 由操作员明确信任的持久缓存，用于跨进程快速查询状态。目录必须预先存在、位于 GitNexus 包/构建根目录之外，且路径中不得包含符号链接或 junction。缺少 POSIX 所有权 API 的平台默认保持故障关闭。', 'help.analyze.environment': - '\n环境变量：\n GITNEXUS_NO_GITIGNORE=1 跳过 .gitignore 解析（仍读取 .gitnexusignore）\n GITNEXUS_MAX_FILE_SIZE=N 覆盖大文件跳过阈值（KB）。默认 512，最大 32768。\n GITNEXUS_STORAGE_PATH=/absolute/index 完整外部索引目录。保留既有配置语义；与 GITNEXUS_STORAGE_ROOT 同时设置时优先使用。\n GITNEXUS_STORAGE_ROOT=/absolute/root 外部索引根目录；每个仓库使用独立的 <仓库名>-<规范路径哈希>/ 子目录。\n GITNEXUS_CONTENT_RETENTION=full 源码文本保留策略：full、symbol 或 none。默认 full。\n GITNEXUS_ANALYZER_IDENTITY_CACHE_DIR=/absolute/protected/dir 由操作员明确信任的持久分析器身份缓存；目录必须预先存在、位于包/构建根目录之外，且路径中不得包含符号链接或 junction。\n GITNEXUS_WORKER_SUB_BATCH_TIMEOUT_MS=N Worker 空闲超时（毫秒）。默认 30000。\n GITNEXUS_WAL_CHECKPOINT_THRESHOLD=N LadybugDB WAL 自动 checkpoint 阈值（字节，默认 67108864 = 64 MiB；-1 保持 Ladybug 默认约 16 MiB）。\n GITNEXUS_WORKER_SUB_BATCH_MAX_BYTES=N Worker 作业字节预算。默认 8388608。\n GITNEXUS_WORKER_POOL_SIZE=N 解析 worker 数量覆盖值。默认 cores-1，最多 16。\n GITNEXUS_PARSE_CHUNK_CONCURRENCY=N 并发进行中的解析分块数。默认 2。\n GITNEXUS_WORKER_MAX_RESPAWNS_PER_SLOT=N 每个 slot 丢弃前允许的最大替换进程数。默认 3。\n GITNEXUS_WORKER_MAX_CUMULATIVE_TIMEOUT_MS=N 每个作业的总重试墙钟时间。默认 5 倍子批次超时。\n GITNEXUS_WORKER_CONSECUTIVE_FAILURE_THRESHOLD=N 每个 slot 触发熔断的死亡次数。默认 max(3, poolSize)。\n GITNEXUS_WORKER_SHUTDOWN_DRAIN_MS=N 线程池关闭时等待仍在原生代码中的已退役 worker 的最长时间（到达安全点后再终止，避免进程级 abort）。默认 30000。\n GITNEXUS_CPP_CAPTURE_BUDGET_MS=N C++ 捕获提取的每文件墙钟预算；超出后该文件保留部分捕获并输出警告。默认 20000。\n GITNEXUS_EMBEDDING_THREADS=N 限制 --embeddings 的本地 ONNX CPU 线程数。\n GITNEXUS_EMBEDDING_RETRY_TIMEOUTS=1 将单次 HTTP 嵌入超时纳入 GITNEXUS_EMBEDDING_MAX_ATTEMPTS 重试（默认关闭，超时仍为终止错误）。\n GITNEXUS_SEMANTIC_EXACT_SCAN_LIMIT=N exact-scan 回退的最大嵌入分块数。默认 10000。\n GITNEXUS_VECTOR_MAX_DISTANCE=N 语义/向量搜索接受的最大余弦距离（0 < N <= 2；超出则钳制为 2）。MCP 默认 0.6，其他路径默认 0.5。\n GITNEXUS_MAX_PROCESSES=N 流程检测的流程数量上限（正整数）。覆盖动态的 max(20, round(symbols/10)) 公式。与查询时的 IMPACT_MAX_CHUNKS 无关。\n GITNEXUS_MAX_PROCESS_BRANCHING=N 流程检测的单节点分支上限。默认 4。\n GITNEXUS_MAX_PROCESS_TRACE_DEPTH=N 流程检测的 DFS 深度上限。默认 10。\n GITNEXUS_MAX_ENTRY_POINT_CANDIDATES=N 排序后的入口点候选池。默认 200。仅在警告点名该上限时提高；那时通常先翻倍。\n\nCLI 参数优先于 `.gitnexusrc`，后者优先于环境变量，环境变量优先于内置默认值。\n\n提示：`.gitnexusignore` 支持 `.gitignore` 风格的取反。比如添加\n `!__tests__/` 可以索引默认自动过滤的目录（#771）。', + '\n环境变量：\n GITNEXUS_NO_GITIGNORE=1 跳过 .gitignore 解析（仍读取 .gitnexusignore）\n GITNEXUS_MAX_FILE_SIZE=N 覆盖大文件跳过阈值（KB）。默认 512，最大 32768。\n GITNEXUS_STORAGE_PATH=/absolute/index 完整外部索引目录。保留既有配置语义；与 GITNEXUS_STORAGE_ROOT 同时设置时优先使用。\n GITNEXUS_STORAGE_ROOT=/absolute/root 外部索引根目录；每个仓库使用独立的 <仓库名>-<规范路径哈希>/ 子目录。\n GITNEXUS_CONTENT_RETENTION=full 源码文本保留策略：full、symbol 或 none。默认 full。\n GITNEXUS_ANALYZER_IDENTITY_CACHE_DIR=/absolute/protected/dir 由操作员明确信任的持久分析器身份缓存；目录必须预先存在、位于包/构建根目录之外，且路径中不得包含符号链接或 junction。\n GITNEXUS_WORKER_SUB_BATCH_TIMEOUT_MS=N Worker 空闲超时（毫秒）。默认 30000。\n GITNEXUS_WAL_CHECKPOINT_THRESHOLD=N LadybugDB WAL 自动 checkpoint 阈值（字节，默认 67108864 = 64 MiB；-1 保持 Ladybug 默认约 16 MiB）。\n GITNEXUS_WORKER_SUB_BATCH_MAX_BYTES=N Worker 作业字节预算。默认 8388608。\n GITNEXUS_WORKER_POOL_SIZE=N 解析 worker 数量覆盖值。默认 cores-1，最多 16。\n GITNEXUS_PARSE_CHUNK_CONCURRENCY=N 并发进行中的解析分块数。默认 2。\n GITNEXUS_WORKER_MAX_RESPAWNS_PER_SLOT=N 每个 slot 丢弃前允许的最大替换进程数。默认 3。\n GITNEXUS_WORKER_MAX_CUMULATIVE_TIMEOUT_MS=N 每个作业的总重试墙钟时间。默认 5 倍子批次超时。\n GITNEXUS_WORKER_CONSECUTIVE_FAILURE_THRESHOLD=N 每个 slot 触发熔断的死亡次数。默认 max(3, poolSize)。\n GITNEXUS_WORKER_SHUTDOWN_DRAIN_MS=N 线程池关闭时等待仍在原生代码中的已退役 worker 的最长时间（到达安全点后再终止，避免进程级 abort）。默认 30000。\n GITNEXUS_CPP_CAPTURE_BUDGET_MS=N C++ 捕获提取的每文件墙钟预算；超出后该文件保留部分捕获并输出警告。默认 20000。\n GITNEXUS_EMBEDDING_THREADS=N 限制 --embeddings 的本地 ONNX CPU 线程数。\n GITNEXUS_EMBEDDING_RETRY_TIMEOUTS=1 将单次 HTTP 嵌入超时纳入 GITNEXUS_EMBEDDING_MAX_ATTEMPTS 重试（默认关闭，超时仍为终止错误）。\n GITNEXUS_SEMANTIC_EXACT_SCAN_LIMIT=N exact-scan 回退的最大嵌入分块数。默认 10000。\n GITNEXUS_VECTOR_MAX_DISTANCE=N 语义/向量搜索接受的最大余弦距离（0 < N <= 2；超出则钳制为 2）。CLI/MCP query 默认 0.6，独立语义搜索默认 0.5。应根据嵌入模型调节：提高阈值可增加召回，但可能降低相关性。在查询/服务器进程的环境中设置，无需重新索引。\n GITNEXUS_MAX_PROCESSES=N 流程检测的流程数量上限（正整数）。覆盖动态的 max(20, round(symbols/10)) 公式。与查询时的 IMPACT_MAX_CHUNKS 无关。\n GITNEXUS_MAX_PROCESS_BRANCHING=N 流程检测的单节点分支上限。默认 4。\n GITNEXUS_MAX_PROCESS_TRACE_DEPTH=N 流程检测的 DFS 深度上限。默认 10。\n GITNEXUS_MAX_ENTRY_POINT_CANDIDATES=N 排序后的入口点候选池。默认 200。仅在警告点名该上限时提高；那时通常先翻倍。\n\nCLI 参数优先于 `.gitnexusrc`，后者优先于环境变量，环境变量优先于内置默认值。\n\n提示：`.gitnexusignore` 支持 `.gitignore` 风格的取反。比如添加\n `!__tests__/` 可以索引默认自动过滤的目录（#771）。', } satisfies EnglishMessages;