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conductor(track): chunkification_optimization_20260608_PLACEHOLDER - 1-page contingency document

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The user's third correction this session changed the framing
from "build a stateful C extension" to "wait for a hard constraint,
then build a request/response blob pipeline." This commit creates
a 1-page contingency document (no plan.md, no implementation)
that captures:

- The threshold: "only worth it under a hard constraint that
  no existing Python package can solve"
- The shape when activated: subprocess-launch C11 binary with
  request/response blob wire format (NOT stateful CPython C
  extension)
- The 2 cited candidates (markdown parsing into aggregate markdown,
  context snapshot processing) are NOT currently bottlenecks per
  src/aggregate.py:380-454 (pure-Python string concat, zero
  third-party markdown deps in pyproject.toml:6-27) and
  src/history.py:1-141 (bounded ~500KB at 100-snapshot capacity,
  debounced)
- The SSDL digest's Technique 5 "Assume-away (Xar)" in §2.2 +
  "Xar-style chunked arrays" recommendation in §5.2 pre-support
  this track

Files (4 total, 227+ lines of contingency document):
- conductor/tracks/chunkification_optimization_20260608_PLACEHOLDER/spec.md
- conductor/tracks/chunkification_optimization_20260608_PLACEHOLDER/metadata.json
- conductor/tracks/chunkification_optimization_20260608_PLACEHOLDER/state.toml
- conductor/tracks/chunkification_optimization_20260608_PLACEHOLDER/index.md

Cross-references added:
- docs/reports/computational_shapes_ssdl_digest_20260608.md (the
  SSDL digest is the theoretical foundation; explicitly cited in
  the spec's §6.1 "SSDL alignment" and in metadata.json external)
- docs/reports/c11_python_interop_assessment_20260608.md (the v1+v2
  assessment; explicitly cited in spec's §6 See Also)

No code modified. Track does NOT appear in the active queue
of conductor/tracks.md; appears in the Backlog / Contingency
section as a reference, not a commitment.

Activation criteria (per metadata.json):
1. Profiling shows a real bottleneck in a target code path
2. The bottleneck cannot be solved with existing Python packages
3. The user explicitly approves activation

Without all 3, this track stays deferred. Default action is don't.
This commit is contained in:
conductor-tier2
2026-06-08 23:40:27 -04:00
parent 12311190b3
commit 816e9f2f5c
4 changed files with 396 additions and 0 deletions
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conductor/tracks/chunkification_optimization_20260608_PLACEHOLDER/index.md
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# Track chunkification_optimization_20260608_PLACEHOLDER Context
**Status:** DEFERRED (contingency only — does not start without explicit activation)
- [Specification](./spec.md) — the 1-page contingency document
- [Metadata](./metadata.json) — activation criteria + shape_when_activated
- [State](./state.toml) — deferred status + user_corrections_log + activation-gated tasks
## Activation Criteria
This track activates only when ALL of the following are true:
1. Profiling shows a real bottleneck in a target code path
2. The bottleneck cannot be solved with existing Python packages
3. The user explicitly approves activation
## Related Documentation
- [v1+v2 C11 Interop Assessment](../../../../docs/reports/c11_python_interop_assessment_20260608.md) — full design space analysis
- [Session Synthesis §8.2](../../../../docs/reports/session_synthesis_20260608.md) — the original proposal
- [User's chunk-ideation](../../../../docs/ideation/ed_chunk_data_structures_20260523.md) — the underlying principle
- [Reece's Xar (Exponential Array) reference](../../../../docs/transcripts/i-h95QIGchY_assuming_as_much_as_possible_andrewreece.txt) — §56:42