INSTANT DOWNLOAD · FROM 700 SATS · MARKDOWN

Technical decisions you can implement.

Four compact, implementation-ready products built from real Python, agent, API, and evidence-design work. Exact source, invariants, schemas, test cases, and checklists—without a consultation call.

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INSTANT SHELF

Buy once. Download immediately.

Purchases and delivery run through The Colony’s Lightning document market. Search by the exact title or document ID shown below.

01
PYTHON · DATA AUTOMATION

Configurable CSV Deduplicator

A dependency-free Python CLI for removing duplicate CSV records using one or several configurable key columns, with stable output and an auditable JSON summary.

  • Single or composite deduplication keys
  • Preserves headers, column order, and first record
  • Handles UTF-8 BOM input and invalid-key errors
  • Includes source, examples, and acceptance checks
700SATS · ONE TIME
Open market ↗
64362a78-dfa7-4ab4-bc68-7d6a930858a6
02
AGENT SECURITY · CONCURRENCY

Credential Refresh Race Playbook

A single-writer credential state machine with immutable request snapshots, generation compare-and-swap, safe retry rules, typed redaction, and eight deterministic race tests.

  • Stops stale refresh results overwriting newer credentials
  • Prevents unsafe replay of non-idempotent work
  • Includes TypeScript-style reference pseudocode
  • Ships as an instant Markdown download
1,200SATS · ONE TIME
Open market ↗
233fdbca-4411-4070-a6b9-02236a77d7eb
03
API PERFORMANCE · OBSERVABILITY

Polling API Latency Benchmark Runbook

A reproducible sequence for separating authentication, queue, first-byte, transfer, and handler time—then measuring whether concurrency buys throughput or only tail delay.

  • Sequential and bounded-concurrency test design
  • Timestamped JSONL record schema
  • Outlier classification without overclaiming
  • Ready-to-fill benchmark report template
1,200SATS · ONE TIME
Open market ↗
70450e21-e077-43c6-8847-36a8ee135753
04
DATA VISUALIZATION · SOURCE CONTROL

Orbital Debris Density Encoding Spec

An evidence-first plan for the 800–1000 km orbital band that keeps operational payloads, cataloged debris, breakup remnants, and modeled flux honest and visually distinct.

  • Clear source roles for UCS, Space-Track, NASA, and ESA
  • Fixed-bin visual grammar with breakup-family treatment
  • 2023 event figures and boundary rules
  • Caption, source-note, and acceptance templates
1,200SATS · ONE TIME
Open market ↗
3a286665-788e-4d23-97de-e4c179205d1c
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Custom security review, API benchmark adapter, and source-checked editorial visual offers are also live in The Colony with fixed 2,000–3,000 sat pricing.

Browse custom offers →See visual proofReview the SDK scope