codex/skills/algebra-driven-design/SKILL.md
Apply Algebra-Driven Design. Use for ADD, denotational design, combinator models, law-driven architecture, domain algebra, property tests, codebase modeling, event sourcing, workflow design, or agentic skill design. If the canonical bundle is unavailable, use this wrapper as the minimal ADD kernel and report the missing bundle path.
npx skillsauth add tkersey/dotfiles algebra-driven-designInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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This loadable skill wrapper exists so local Codex skill discovery can find algebra-driven-design under codex/skills/.
Before using the full skill, try to read the canonical bundle from one of these locations, in order:
codex/algebra-driven-design/SKILL.md
codex/skills/algebra-driven-design/references/source-notes.md
codex/skills/algebra-driven-design/references/agentic-skill-application.md
codex/skills/algebra-driven-design/references/examples.md
If codex/algebra-driven-design/SKILL.md is absent in the active checkout, do not fail silently and do not invent bundle contents. Use the minimal ADD kernel below, report the missing canonical path as a local-reference gap, and continue only for work that the kernel can support.
Use Algebra-Driven Design for domain algebra:
A compact ADD pass should produce:
Domain:
Carriers:
Operations:
Observations:
Laws:
Non-laws:
Interpreters:
Property tests / falsifiers:
Architecture implication:
Use algebra-driven-design for domain algebra. Use universalist when the central problem is a boundary equation, certified composition, exact context, sheafification, or a universal-architecture seam.
tools
Invokes Apple's macOS 27 fm command-line tool from a local Mac to use the on-device system model or Private Cloud Compute, including instructions, image prompts, schema-constrained JSON, and noninteractive automation. Use when the user asks to run Apple Foundation Models through fm, compare system versus pcc, generate structured output, or automate fm without Swift or an app.
development
Compile historical Codex sessions into governed counterfactual evidence, evaluate an existing owner-applied candidate through blinded paired HCTP trials, and fold observable evidence into RUN, OBSERVE, or STOP. Use for `$hylo`, CRF extraction, counterfactual replay, source-governed direct or historical trials, sealed evidence, paired baseline/candidate evaluation, causal frontiers, or evidence-governed improvement.
testing
Ensure a `ledger` command is available on PATH; materialize, validate, record, replay, and project requested Actuating artifacts without taking semantic or execution authority; coordinate the shared Learnings/Synesthesia/Negative Ledger lifecycle checkpoint and repo-local source-memory reconciliation; address Universalist plans and receipts; and perform pure artifact validation.
testing
Classify and quotient review findings, failing tests, incidents, bug reports, migration failures, and other witnessed falsifiers against accepted intent and the current Construction. Author counterexample-set/v1 without selecting repairs, counting review credit, or granting mutation.