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Updated 2d ago

by LLM-Coding

Semantic-Anchors

A curated catalog of 230+ semantic anchors: well-defined terms like arc42, TDD London School or tracer bullet that activate deep, consistent knowledge in LLMs. Use them in prompts, skills and agent instructions instead of spelling out methods yourself.

  • Active — Updated in the last 14 days
Works with
  • Claude
View on GitHub (opens in a new tab)

521 GitHub stars (521)

Stars gained per day · daily snapshots since Oct 21
Stars gained per day, Oct 21 to Oct 23: +7 in total; the busiest day was Oct 22 with +5 stars.Oct 22: +5 starsOct 23: +2 stars
Stars gained between daily snapshots
PeriodNew stars
Oct 22+5
Oct 23+2
  • 6 skills (6 skills found in its SKILL.md files)
  • 45 forks (45 forks)
  • 2d ago last update (Last updated 2d ago)

Install

Skills CLI

npx skills add LLM-Coding/Semantic-Anchors

Asks which skills and agents to install. Just one: npx skills add LLM-Coding/Semantic-Anchors --skill anchor-prior-test — add -g for every project.

Claude Code

git clone https://github.com/LLM-Coding/Semantic-Anchorscp -r "Semantic-Anchors/skill/anchor-prior-test" ~/.claude/skills/

Copies the anchor-prior-test skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.

Plugin

/plugin marketplace add LLM-Coding/Semantic-Anchors

Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.

Skills can run code on your machine — read the SKILL.md first.

What it does

In the author's own words, from each skill's SKILL.md.

  • anchor-prior-test

    Empirically test whether a candidate term qualifies as a semantic anchor by probing how densely it sits in LLM training data — across several model tiers in a clean room — before proposing it. Use when triaging an anchor proposal, deciding anchor vs contract, or vetting a rename. Produces a verdict against the four criteria (Precise, Rich, Consistent, Attributable), a tier rating, and a ready-to-…

    skill/anchor-prior-test/SKILL.md on GitHub (opens in a new tab)

  • arc42-documentation

    Author an arc42 architecture document with the project's cross-section traceability rules. Use when producing or extending an arc42 document — it carries the procedure the "Architecture Documentation" contract deliberately leaves out: scaffolding the with-help template, the five traceability rules arc42 does not enforce, the Chapter 11 Risks-vs-Technical-Debt structure, the ADR-to-risk-ID wiring,…

    skill/arc42-documentation/SKILL.md on GitHub (opens in a new tab)

  • semantic-anchor-onboarding

    DEPRECATED alias of semantic-contracts-installer. Renamed because the skill's high-value job is installing Semantic Contracts (compositions the LLM cannot guess), not bare anchor lists. Use semantic-contracts-installer instead; this alias forwards to it and will be removed after one release.

    skill/semantic-anchor-onboarding/SKILL.md on GitHub (opens in a new tab)

  • semantic-anchor-translator

    Bi-directional translator between verbose descriptions and established terminology (semantic anchors). Use when (1) user describes a concept verbosely and you want to identify the precise term, or (2) user asks for methodology/approach and you want to suggest relevant anchors. Covers 200+ terms across testing, architecture, design principles, problem-solving, requirements, documentation, communic…

    skill/semantic-anchor-translator/SKILL.md on GitHub (opens in a new tab)

  • semantic-contracts-installer

    Install Semantic Contracts (and, as a sub-mode, individual semantic anchors) into a coding agent's persistent context for Claude Code, Codex, Gemini CLI, Cursor, GitHub Copilot, and similar agents. Use when setting up project-level or user-level onboarding, generating or updating AGENTS.md / CLAUDE.md / GEMINI.md / Copilot instruction files, or choosing which contracts a project should run. A con…

    skill/semantic-contracts-installer/SKILL.md on GitHub (opens in a new tab)

  • socratic-code-theory-recovery

    Recover the "theory" (Naur 1985) of an existing codebase through recursive question refinement before writing documentation. Use on brownfield projects where the spec is missing — produces a Question Tree separating what is answerable from code (with evidence) from what must be asked of the team (routed by role). Phase 1 builds the tree; team answers the OPEN leaves; Phase 2 synthesizes PRD, Cock…

    skill/socratic-code-theory-recovery/SKILL.md on GitHub (opens in a new tab)

Review before you install

A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.