diegosouzapw · Jul 12, 2026 · Jul 10, 2026 · Jul 10, 2026 · Jul 10, 2026 · Jul 10, 2026
@@ -573,7 +573,7 @@ Engines run in pipeline order; each is independently toggleable and configurable
 | 1   | **Session-Dedup** | Drops content repeated across turns (content-addressed, cross-turn) |
 | 2   | **CCR**           | Archives large blocks behind retrieve markers, fetched on demand    |
 | 3   | **RTK**           | Smart tool-result filtering, dedup & truncation (command-aware)     |
-| 4   | **Headroom**      | Lossless tabular compaction of homogeneous JSON arrays (~30%+)      |
+| 4   | **Headroom**      | Lossless tabular compaction of homogeneous JSON arrays (~30%+), via a vendored **[GCF](https://github.com/blackwell-systems/gcf)** codec |
 | 5   | **Relevance**     | Extractive sentence scoring against the last user query             |
 | 6   | **Caveman**       | Rule-based prose compression (~65–75% on output)                    |
 | 7   | **LLMLingua-2**   | ML semantic pruning via MobileBERT ONNX — code-safe, async          |
@@ -1215,7 +1215,7 @@ OmniRoute stands on the shoulders of giants. It started as a fork of **[9router]
 | Project                                                                                        |    ⭐ | How it inspired OmniRoute                                                                                                                                                                                      |
 | ---------------------------------------------------------------------------------------------- | ----: | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | **[TOON](https://github.com/toon-format/toon)** · toon-format                                  | 24.7k | Token-Oriented Object Notation — its columnar, header-plus-rows model shaped our tabular compaction stage.                                                                                                     |
-| **[GCF – Graph Compact Format](https://github.com/blackwell-systems/gcf)** · Blackwell Systems |    14 | Schema-aware "JSON for LLMs" notation — co-inspired our lossless homogeneous-array compaction with `[N rows]` markers.                                                                                         |
+| **[GCF – Graph Compact Format](https://github.com/blackwell-systems/gcf)** · Blackwell Systems |    14 | First inspired our tabular compaction stage; now its zero-dependency, lossless generic-profile encoder is **vendored directly** as the Headroom codec (MIT, SPDX-marked), current with GCF spec v3.2. |
 | **[token-optimizer-mcp](https://github.com/ooples/token-optimizer-mcp)** · ooples              |   421 | Brotli/SQLite cache + per-session context-delta — inspired our `session-dedup` engine.                                                                                                                         |
 | **[token-savior](https://github.com/Mibayy/token-savior)** · Mibayy                            |  1.0k | Bash-output compaction + MCP profiles — inspired our compression bail-out discipline and MCP tool-manifest reduction.                                                                                          |
 | **[token-saver](https://github.com/ppgranger/token-saver)** · ppgranger                        |   110 | Content-aware, per-file-type output compression with failure-aware bail-out — validated our per-type dispatch and minimum-gain skip.                                                                           |

@@ -0,0 +1 @@
+- **feat(compression):** update the vendored **GCF** codec behind the **Headroom** engine to spec **v3.2 (nested flattening)** ([#6837](https://github.com/diegosouzapw/OmniRoute/issues/6837)). Homogeneous arrays whose rows carry nested objects/arrays now tabularize via `>`-prefixed path fields instead of a low-yield per-row fallback, so nested MCP tool-result rows (`meta:{...}`, `tags:[...]`) compact like flat rows. On representative shapes the update takes deeply-nested payloads the old codec left near-uncompressed from ~3% to ~32% vs JSON (k8s pods, `cl100k_base`), with shallow-nested rows seeing a small bump and flat arrays unchanged. Re-vendored from current gcf-typescript (zero runtime deps, MIT, SPDX-marked, generic-profile only); also folds in the `[N]:` inline-array quoting fix and canonical decimal formatting. Round-trip stays lossless (order-insensitive). Regression guard: `tests/unit/compression/headroom-smartcrusher.test.ts` (new deep-nested case).
@@ -1,6 +1,7 @@
 {
   "_comment": "Catraca de complexidade (check-complexity.mjs, ESLint core rules complexity>=15 e max-lines-per-function>80 sobre src+open-sse+electron+bin via eslint.complexity.config.mjs). Conta total de violacoes; so pode cair. --update ratcheta.",
-  "count": 2053,
+  "count": 2055,
+  "_rebaseline_2026_07_10_gcf_v3_2": "2053->2055 (+2). PR feat/headroom-gcf-v3.2-nested-flattening: own growth from re-vendoring the GCF (Headroom) codec to spec v3.2 (nested flattening). The 2 new over-threshold functions are the v3.2 `>`-path flatten/unflatten walk in the vendored generic-profile encode/decode paths (open-sse/services/compression/engines/headroom/gcf/{generic,decode_generic}.ts). This is imported third-party code kept byte-faithful to upstream gcf-typescript, not extractable without diverging from the vendored source; measured 2055 with the codec update vs 2053 on the pristine origin/release/v3.8.47 tip. Round-trip guarded by tests/unit/compression/headroom-smartcrusher.test.ts (deep-nested case). Structural shrink belongs upstream in gcf, not here.",
   "_rebaseline_2026_07_08_6556_inherited_drift": "2052->2053 (+1). PR #6556 (omniglyph engine): drift herdado do merge burst da base (a catraca nao roda no fast-path PR->release, mesmo padrao dos rebaselines v3.8.44/46). Trust-but-verify: o proprio codigo do PR e complexity-net-zero — as 2 violacoes que ele introduzia (runCompressionAsync complexity 17 apos o branch do modo omniglyph; OmniglyphContextPageClient 161 linhas) foram CORRIGIDAS por extracao real (engines/omniglyphSingleMode.ts + split do componente em section components), medido: 2055->2053 local; base pura origin/release/v3.8.47 mede 2053 identico. Tighten via --update next cycle.",
   "_rebaseline_2026_07_07_v3846_release_close": "2035->2050 (+15). v3.8.46 release close (generate-release Phase 0 pre-flight): drift herdado do merge burst do ciclo (39 commits do dia + campanha /review-*). Trust-but-verify: os fixes de base-red do captain (agentSkills path.resolve #6366, catalogo cache #6408, tipagem de teste no-explicit-any, MitmProxyTab suppression) sao complexity-net-zero — check:complexity mede 2050 identico com e sem os fixes (a catraca NAO roda no fast-path PR->release, entao o ramo acumulou sem rebaselinar). Tighten via --update next cycle.",
   "_rebaseline_2026_07_04_v3844_release_close": "2026->2028 (+2). v3.8.44 release close (generate-release Phase 0/1): drift residual do fim do ciclo medido no tip pos-#6155 (merge burst final: #6155 cooling-panel + #6104 Kenari + #6139/#6128 provider-limits). Trust-but-verify: os 2 fixes de codigo do release-captain (model.ts alias boundary, auggie.ts stdin error handlers) adicionam 0 violacoes NOVAS — eslint.complexity direto nos 2 arquivos flagra apenas funcoes que ja estouravam o limite antes (runStreaming/start ja >80 linhas; resolveModelByProviderInference/getModelInfoCore pre-existentes de #5918), e resolveProviderAlias segue abaixo de 15. Logo o +2 e drift herdado do burst. Tighten via --update next cycle.",

@@ -131,7 +131,7 @@
   },
   "open-sse/services/compression/engines/headroom/gcf/decode_generic.ts": {
     "@typescript-eslint/no-explicit-any": {
-      "count": 18
+      "count": 22
     }
   },
   "open-sse/services/compression/engines/headroom/gcf/scalar.ts": {

@@ -120,7 +120,8 @@
       "_rebaseline_2026_06_26_v3837_release": "343->345. v3.8.37 cycle drift surfaced by the release-green pre-flight (the Quality Ratchet does NOT run on PR->release fast-gates, so warnings/complexity accrued unmeasured across this cycle's 76 commits — provider adds DGrid/Pioneer/xAI, headroom proxy lifecycle #4649, ~50 SSE/translator fixes, Engine Combos #5062). Trust-but-verify: this release-finalize working tree touches ONLY CHANGELOG.md, docs/i18n/*/CHANGELOG.md mirrors, and these baselines — 0 production-code change, so all drift is inherited cycle drift (`any` warn-allowed in open-sse/ + tests/). Tighten via --require-tighten next cycle."
     },
     "cognitiveComplexity": {
-      "value": 885,
+      "value": 888,
+      "_rebaseline_2026_07_10_gcf_v3_2": "885->888 (+3). PR feat/headroom-gcf-v3.2-nested-flattening: own growth from re-vendoring the GCF (Headroom) codec to spec v3.2 (nested flattening). The new over-threshold functions are the vendored v3.2 flatten/unflatten walk in open-sse/services/compression/engines/headroom/gcf/{generic,decode_generic}.ts. Imported third-party code kept byte-faithful to upstream gcf-typescript; measured 888 with the update vs 885 on the pristine origin/release/v3.8.47 tip. Guarded by tests/unit/compression/headroom-smartcrusher.test.ts (deep-nested case). Structural shrink belongs upstream in gcf.",
       "_rebaseline_2026_07_09_6587_kiro_api_key_auth": "884->885 (+1). PR #6587 (@strangersp) own growth: open-sse/services/usage/kiro.ts gains ONE new over-threshold function — getKiroUsage grew from a single fetch to a 3-endpoint fallback chain (codewhisperer-get / codewhisperer-post / q-get) with per-attempt auth-header selection (tokentype: API_KEY vs Bearer-only), needed so usage/quota lookups work for the new long-lived-API-key auth path in addition to the existing OAuth path (measured: 0 violations on release tip -> 1 violation, complexity 33, at open-sse/services/usage/kiro.ts). Covered by tests/unit/kiro-iam-profilearn-usage.test.ts (tokentype header selection, friendly auth-expired/rejected-token messages). Cohesive multi-endpoint-fallback logic at an existing usage chokepoint; not extractable without splitting the fallback loop mid-merge. Structural shrink tracked in #3501.",
       "_rebaseline_2026_07_07_v3846_release_close": "877->882 (+5). v3.8.46 release close (generate-release Phase 0 pre-flight): drift herdado do merge burst do ciclo. Trust-but-verify: os fixes de base-red do captain (agentSkills path.resolve #6366, catalogo cache #6408, tipagem de teste, MitmProxyTab suppression) sao cognitive-net-zero — check:cognitive-complexity mede 882 identico com e sem os fixes (a catraca NAO roda no fast-path PR->release). Tighten via --update next cycle.",
       "_rebaseline_2026_07_03_v3844_ipfilter_release_green": "861->867 (+6). v3.8.44 cycle drift measured on release tip 32e4c906e during the #6131/#5975 release-green rebaseline. Inherited from the merge burst (Quality Ratchet does not run on PR->release fast-gates). route-edge-coverage +7 is my #5975 test comment; the rest is parallel-session drift. Tighten via --update next cycle.",
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		- feat(compression): update the vendored GCF codec behind the Headroom engine to spec v3.2 (nested flattening) ([#6837](https://github.com/diegosouzapw/OmniRoute/issues/6837)). Homogeneous arrays whose rows carry nested objects/arrays now tabularize via `>`-prefixed path fields instead of a low-yield per-row fallback, so nested MCP tool-result rows (`meta:{...}`, `tags:[...]`) compact like flat rows. On representative shapes the update takes deeply-nested payloads the old codec left near-uncompressed from ~3% to ~32% vs JSON (k8s pods, `cl100k_base`), with shallow-nested rows seeing a small bump and flat arrays unchanged. Re-vendored from current gcf-typescript (zero runtime deps, MIT, SPDX-marked, generic-profile only); also folds in the `[N]:` inline-array quoting fix and canonical decimal formatting. Round-trip stays lossless (order-insensitive). Regression guard: `tests/unit/compression/headroom-smartcrusher.test.ts` (new deep-nested case).