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ECC/pi/core/skills/data-throughput-accelerator/SKILL.md
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Affaan Mustafa c70874fae9 feat(pi): curated pi/core skills+prompts profile, CI load test, and 2.2.2 release sync (#3264)
Adds a curated, Pi-native, skills+prompts-only profile at pi/core/ for downstream packagers that mirror GitHub Releases.

- manifests/pi-core.json: explicit include lists, per-item exclusion reasons, curation rules, safety allowlists; every root skill and command must be classified.
- scripts/build-pi-core.js regenerates pi/core deterministically (package.json from VERSION, LICENSE, README.md, CURATION.md, skills/, commands/); --check fails CI on drift. council is renamed ecc-council inside pi/core only.
- Safety checks: no callable endpoints outside the allowlist, no npx/curl|sh/pip install, no secrets, no absolute home paths, no symlinks, valid frontmatter, no duplicate names.
- CI: build + drift check and an offline Pi CLI load test of pi/core.
- Release: VERSION, package.json and pi/core/package.json at 2.2.2, CHANGELOG, tag-triggered release verification, and a two-week cadence in CONTRIBUTING.md.

pi/core: 123 of 293 skills and 24 of 94 commands; 35,006 characters of skill description text.
2026-09-29 20:24:05 -05:00

2.8 KiB

name, description, license, metadata, tools
name description license metadata tools
data-throughput-accelerator Diagnose and accelerate large data movement — ingestion, backfill, export, ETL, warehouse loading, manifest catch-up, and table synchronization — by isolating the true bottleneck, benchmarking variants, and codifying the fastest path with a hard accounting block proving rows and timestamps cohere. Use when a pipeline or backfill is too slow and must get faster without losing data correctness. MIT
origin
ECC
Read, Write, Edit, Bash, Grep, Glob

Data Throughput Accelerator

Use this skill when the bottleneck is moving, transforming, or saving lots of data. The goal is not just speed. The goal is faster correct data landing in the right place with proof.

First Distinction

Separate these before optimizing:

  • source extraction speed;
  • network transfer speed;
  • warehouse/load speed;
  • transform speed;
  • serving-table freshness;
  • live tail growth while the job runs.

A pipeline can be "fast" and still appear behind if new data arrives faster than the final catch-up window.

Fast Path Heuristics

  • Move compute to where the data already is.
  • Prefer warehouse-native scans, joins, and appends for large landed files.
  • Use manifests or checkpoints so completed files/partitions are skipped.
  • Use partitioning and clustering that match the read and append pattern.
  • Batch small files, requests, and writes.
  • Make writes idempotent through unique keys, manifests, or replaceable staging.
  • Keep raw, derived, and serving tables separately accountable.

Workflow

  1. Read the current source, target, and manifest contracts.
  2. Measure backlog: external files, manifest rows, raw rows, derived rows, min/max timestamps, and unprocessed counts.
  3. Run a safe catch-up or sample benchmark.
  4. Compare variants: batch size, worker count, warehouse SQL, file grouping, staging shape, and manifest update method.
  5. Promote only the fastest path that keeps counts and timestamps coherent.
  6. Codify the path as a CLI, scheduled job, workflow, or runbook.
  7. Rerun final accounting after the codified path executes.

Accounting Output

Use a hard accounting block:

Data throughput result:
- Source files discovered: 294
- Files processed this run: 294
- Raw rows added: 9,683,598
- Derived rows added: 8,917,585
- Remaining tail: 24 files at readback time
- Runtime: 38.7s
- Correctness gate: manifest counts and table max timestamps match

Guardrails

  • Do not delete raw data to make a metric look better.
  • Do not skip failed files silently.
  • Do not mix historical backfill status with live-tail freshness.
  • Do not call a pipeline complete until the target tables and manifest agree.
  • For finance, healthcare, regulated, or customer-impacting data, preserve replay evidence and approval gates.