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Merge feat/json-nested-flatten — WIN on every JSON file
Nested flatten for json_array, grouped json_array for diverse schemas, compressed transform metadata, adaptive level tuning. DataCortex now BEATS zstd-19 on every test file: test-ndjson: 19.2x vs 15.6x (+23%) test-api.json: 14.1x vs 13.2x (+7%) uniform-10k: 24.8x vs 16.0x (+55%) twitter.json: 17.0x vs 16.7x (+2%) citm_catalog: 195.3x vs 176.0x (+11%) 339 tests, 22/22 E2E roundtrips, clippy clean. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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‎.codecortex/constitution.md‎

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- **Name:** datacortex
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- **Languages:** rust
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- **Files:** 50
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- **Symbols:** 984
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- **Symbols:** 1028
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- **Modules:** 3
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- **Last updated:** 2026-03-24T21:37:40.097Z
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- **Last updated:** 2026-03-25T08:29:06.052Z
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## Architecture
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**Modules (3):**
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- **datacortex-core** (45 files, 16860 lines) — rust
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- **datacortex-core** (45 files, 18663 lines) — rust
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- **datacortex-neural** (3 files, 773 lines) — rust
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- **datacortex-cli** (1 files, 635 lines) — rust
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- **datacortex-cli** (1 files, 642 lines) — rust
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## Risk Map
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**Hottest files (most changes):**
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- `CLAUDE.md` — 14 changes, VOLATILE
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- `crates/datacortex-core/src/format/mod.rs` — 14 changes, VOLATILE
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- `CLAUDE.md` — 17 changes, VOLATILE
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- `crates/datacortex-core/src/format/mod.rs` — 16 changes, VOLATILE
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- `crates/datacortex-core/src/codec.rs` — 15 changes, VOLATILE
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- `crates/datacortex-core/src/model/engine.rs` — 13 changes, VOLATILE
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- `crates/datacortex-core/src/codec.rs` — 12 changes, VOLATILE
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- `crates/datacortex-core/src/mixer/dual_mixer.rs` — 11 changes, VOLATILE
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- `.codecortex/constitution.md` — 12 changes, VOLATILE
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**Hidden dependencies (co-change but no import):**
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- `crates/datacortex-core/src/format/mod.rs` ↔ `crates/datacortex-core/src/format/transform.rs` — 11 co-changes (69%)
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- `crates/datacortex-core/src/mixer/dual_mixer.rs` ↔ `crates/datacortex-core/src/model/engine.rs` — 11 co-changes (85%)
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- `crates/datacortex-core/src/format/mod.rs` ↔ `crates/datacortex-core/src/format/transform.rs` — 10 co-changes (71%)
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- `crates/datacortex-core/src/model/engine.rs` ↔ `crates/datacortex-core/src/model/mod.rs` — 8 co-changes (62%)
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- `crates/datacortex-core/src/mixer/dual_mixer.rs` ↔ `crates/datacortex-core/src/model/mod.rs` — 6 co-changes (55%)
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- `Cargo.toml` ↔ `crates/datacortex-core/Cargo.toml` — 5 co-changes (100%)
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- `crates/datacortex-cli/src/main.rs` ↔ `crates/datacortex-core/src/lib.rs` — 5 co-changes (83%)
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## Available Knowledge
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‎.codecortex/cortex.yaml‎

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project: datacortex
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root: /Users/rushikeshmore/Desktop/personal-desk/03-projects/datacortex
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generated: 2026-03-24T11:04:44.370Z
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lastUpdated: 2026-03-24T21:37:40.097Z
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lastUpdated: 2026-03-25T08:29:06.052Z
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languages:
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- rust
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totalFiles: 50
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totalSymbols: 984
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totalSymbols: 1028
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totalModules: 3
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projectSize: small
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tiers:

‎.codecortex/graph.json‎

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‎.codecortex/hotspots.md‎

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# Risk-Ranked Files
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> Auto-generated by CodeCortex. 41 commits analyzed over 90 days.
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> Auto-generated by CodeCortex. 46 commits analyzed over 90 days.
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| File | Changes | Couplings | Bugs | Risk | Stability |
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|------|---------|-----------|------|------|-----------|
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| `crates/datacortex-core/src/model/engine.rs` | 13 | 13 | 0 | 21.74 | volatile |
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| `crates/datacortex-core/src/model/mod.rs` | 11 | 11 | 0 | 18.74 | volatile |
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| `crates/datacortex-core/src/codec.rs` | 12 | 10 | 0 | 18.06 | volatile |
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| `crates/datacortex-core/src/mixer/dual_mixer.rs` | 11 | 9 | 0 | 18 | volatile |
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| `crates/datacortex-core/src/format/mod.rs` | 14 | 6 | 0 | 17.52 | volatile |
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| `crates/datacortex-core/src/model/word_model.rs` | 5 | 11 | 0 | 16.32 | stabilizing |
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| `crates/datacortex-core/src/model/engine.rs` | 13 | 13 | 0 | 21.64 | volatile |
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| `crates/datacortex-core/src/codec.rs` | 15 | 10 | 0 | 20.28 | volatile |
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| `crates/datacortex-core/src/format/mod.rs` | 16 | 7 | 0 | 19.78 | volatile |
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| `crates/datacortex-core/src/model/mod.rs` | 11 | 11 | 0 | 18.52 | volatile |
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| `crates/datacortex-core/src/mixer/dual_mixer.rs` | 11 | 9 | 0 | 17.96 | volatile |
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| `CLAUDE.md` | 17 | 0 | 0 | 17 | volatile |
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| `crates/datacortex-core/src/model/match_model.rs` | 4 | 10 | 0 | 16.3 | moderate |
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| `crates/datacortex-core/src/model/word_model.rs` | 5 | 11 | 0 | 16.22 | stabilizing |
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| `crates/datacortex-core/src/state/state_map.rs` | 4 | 9 | 0 | 14.24 | moderate |
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| `CLAUDE.md` | 14 | 0 | 0 | 14 | volatile |
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| `crates/datacortex-cli/src/main.rs` | 5 | 6 | 0 | 12.86 | stabilizing |
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| `Cargo.toml` | 5 | 6 | 0 | 12.7 | stabilizing |
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| `crates/datacortex-core/Cargo.toml` | 5 | 6 | 0 | 12.7 | stabilizing |
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| `crates/datacortex-core/src/format/transform.rs` | 10 | 1 | 0 | 11.42 | volatile |
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| `crates/datacortex-cli/src/main.rs` | 6 | 6 | 0 | 13 | stabilizing |
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| `crates/datacortex-core/src/format/transform.rs` | 11 | 1 | 0 | 12.38 | volatile |
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| `Cargo.toml` | 5 | 6 | 0 | 12.14 | stabilizing |
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| `crates/datacortex-core/Cargo.toml` | 5 | 6 | 0 | 12.14 | stabilizing |
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| `.codecortex/constitution.md` | 12 | 0 | 0 | 12 | volatile |
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| `.codecortex/cortex.yaml` | 12 | 0 | 0 | 12 | volatile |
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| `.codecortex/graph.json` | 12 | 0 | 0 | 12 | volatile |
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| `.codecortex/hotspots.md` | 12 | 0 | 0 | 12 | volatile |
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| `.codecortex/symbols.json` | 12 | 0 | 0 | 12 | volatile |
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| `.codecortex/temporal.json` | 12 | 0 | 0 | 12 | volatile |
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| `crates/datacortex-core/src/model/cm_model.rs` | 4 | 6 | 0 | 11.04 | moderate |
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| `crates/datacortex-core/src/mixer/mod.rs` | 7 | 5 | 0 | 10.76 | stabilizing |
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| `crates/datacortex-core/src/lib.rs` | 5 | 5 | 0 | 10.38 | stabilizing |
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| `crates/datacortex-core/src/lib.rs` | 6 | 5 | 0 | 11 | stabilizing |
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| `crates/datacortex-core/src/mixer/mod.rs` | 7 | 5 | 0 | 10.58 | stabilizing |
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| `crates/datacortex-core/src/model/json_model.rs` | 3 | 5 | 0 | 10.16 | moderate |
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| `crates/datacortex-core/src/model/run_model.rs` | 3 | 5 | 0 | 10.16 | moderate |
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| `crates/datacortex-core/src/model/sparse_model.rs` | 3 | 5 | 0 | 10.16 | moderate |
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| `crates/datacortex-core/src/mixer/apm.rs` | 3 | 6 | 0 | 9.7 | moderate |
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| `crates/datacortex-core/src/state/mod.rs` | 4 | 5 | 0 | 9.08 | moderate |
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| `.codecortex/constitution.md` | 9 | 0 | 0 | 9 | volatile |
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| `.codecortex/cortex.yaml` | 9 | 0 | 0 | 9 | volatile |
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| `.codecortex/graph.json` | 9 | 0 | 0 | 9 | volatile |
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| `.codecortex/hotspots.md` | 9 | 0 | 0 | 9 | volatile |
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| `.codecortex/symbols.json` | 9 | 0 | 0 | 9 | volatile |
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| `.codecortex/temporal.json` | 9 | 0 | 0 | 9 | volatile |
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| `crates/datacortex-cli/Cargo.toml` | 3 | 4 | 0 | 8.6 | moderate |
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| `crates/datacortex-neural/Cargo.toml` | 3 | 4 | 0 | 8.6 | moderate |
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| `crates/datacortex-core/src/state/mod.rs` | 4 | 5 | 0 | 8.98 | moderate |
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| `crates/datacortex-cli/Cargo.toml` | 3 | 4 | 0 | 8.4 | moderate |
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| `crates/datacortex-neural/Cargo.toml` | 3 | 4 | 0 | 8.4 | moderate |
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| `crates/datacortex-core/src/mixer/logistic.rs` | 3 | 3 | 0 | 6.54 | moderate |
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Generated: 2026-03-24T21:37:40.094Z
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Generated: 2026-03-25T08:29:06.050Z

‎.codecortex/sessions/2026-03-25T07-12-22.md‎

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# Session: 2026-03-25T07:12:22.645Z
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**ID:** 2026-03-25T07-12-22
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**Previous:** 2026-03-24T22-25-21
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## Summary
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Updated knowledge. 1010 symbols, 3 modules.
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## Files Changed
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- `.codecortex/constitution.md`
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- `.codecortex/cortex.yaml`
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- `.codecortex/graph.json`
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- `.codecortex/hotspots.md`
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- `.codecortex/symbols.json`
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- `.codecortex/temporal.json`
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- `CLAUDE.md`
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## Modules Affected
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- root

‎.codecortex/sessions/2026-03-25T07-34-02.md‎

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# Session: 2026-03-25T07:34:02.466Z
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**ID:** 2026-03-25T07-34-02
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**Previous:** 2026-03-25T07-12-22
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## Summary
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Updated knowledge. 1010 symbols, 3 modules.
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## Files Changed
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- `.codecortex/constitution.md`
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- `.codecortex/cortex.yaml`
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- `.codecortex/graph.json`
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- `.codecortex/hotspots.md`
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- `.codecortex/symbols.json`
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- `.codecortex/temporal.json`
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- `CLAUDE.md`
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## Modules Affected
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- root

‎.codecortex/sessions/2026-03-25T08-03-28.md‎

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# Session: 2026-03-25T08:03:28.692Z
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**ID:** 2026-03-25T08-03-28
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**Previous:** 2026-03-25T07-34-02
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## Summary
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Updated knowledge. 1015 symbols, 3 modules.
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## Files Changed
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- `.codecortex/constitution.md`
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- `.codecortex/cortex.yaml`
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- `.codecortex/graph.json`
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- `.codecortex/hotspots.md`
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- `.codecortex/symbols.json`
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- `.codecortex/temporal.json`
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- `CLAUDE.md`
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## Modules Affected
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- root

‎.codecortex/sessions/2026-03-25T08-29-06.md‎

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# Session: 2026-03-25T08:29:06.066Z
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**ID:** 2026-03-25T08-29-06
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**Previous:** 2026-03-25T08-03-28
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## Summary
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Updated knowledge. 1028 symbols, 3 modules.
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## Files Changed
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- `.codecortex/constitution.md`
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- `.codecortex/cortex.yaml`
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- `.codecortex/graph.json`
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- `.codecortex/hotspots.md`
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- `.codecortex/symbols.json`
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- `.codecortex/temporal.json`
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- `CLAUDE.md`
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## Modules Affected
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- root

‎.codecortex/symbols.json‎

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