do-it-context

A project skill that keeps .do-it/CONTEXT.md as the authoritative glossary for a codebase. The file records agreed names, facts, constraints, and relationships so the AI agent uses them consistently.

In plain words
What is it for?
Use it when clarifying project terms, recording invariants, resolving competing names, or documenting relationship counts such as one-to-many.
Why use it?
It prevents terminology and rules from drifting between code, documentation, and agent sessions. It also gives later decisions a shared source of truth.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/tdwhere123/do-it/do-it-context
Any agent
npx skills add tdwhere123/do-it --skill do-it-context
Clone the repo
git clone --depth 1 https://github.com/tdwhere123/do-it

Made for: Claude Code, Codex.

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,358 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00051 $0.02358
Opus 5 $0.00026 $0.01179
Sonnet 5 $0.00010 $0.00472
Haiku 4.5 $0.00005 $0.00236

Measured 2d ago against content hash 0b3d5b1703c4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

do-it-context scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/do-it-cursor/skills/do-it-context/SKILL.md · 220 lines

How it starts

The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Do-It Context

Purpose

.do-it/CONTEXT.md is the single canonical place where this project's terminology, invariants, and relationship-shapes live for AI workflows. Other skills (especially do-it-decide, do-it-review, do-it-code-quality) read it before debating definitions. This skill also owns the deeper domain-language pass (canonical glossary + contradiction checks) — see § Domain Glossary Mode.

It is not a wiki, README replacement, or onboarding doc. It is a terse, declarative artifact intended to fit in the AI's working memory budget. Keep it under ~200 lines.

When To Use

  • The first time do-it-decide clarifies a term in this repo, write it back here so the next session does not re-litigate.
  • When a constraint surfaces that the codebase will not enforce on its own (e.g. "user IDs are global, never per-tenant"), record it here.
  • When two terms turn out to mean the same thing, pick one and put it here so the alias is killed at the source.
  • When a relationship has cardinality that matters (1:1, 1:N, N:M with constraint), record the cardinality.

When NOT To Use

  • Onboarding narrative, history, or rationale → that belongs in README.md / docs/ / commit messages.
  • Tutorial content → README.
  • Anything code can express clearly on its own → leave it in code.
  • Status / TODO / current-work → .do-it/plans/ or the issue tracker.

Context Hierarchy

When context sources disagree, use this order:

  1. Current code, tests, schemas, manifests, generated source-of-truth scripts, and live command output.
  2. CLAUDE.md (or the host's equivalent root agent-instruction file) for durable, human-authored conventions and behavioral rules the team chose — authoritative for how to work here, though current code still wins on what the code is.
  3. .do-it/CONTEXT.md for terse repo terms, invariants, and relationships that code does not express accessibly.
  4. Current plan, grill log, task card, or issue for the active work.
  5. README, docs, ADRs, and maintenance guides.
  6. Memory, old reports, previous worker summaries, and external sources.

Read the full file on GitHub · 220 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 220 lines · 51 tokens per session scan A 0b3d5b1703c4

Subscribe to this mod's changes

do-it-context is a skill published in the GitHub repository tdwhere123/do-it (27 stars, last pushed 20d ago), licensed MIT. It adds 51 tokens to every session and 2,358 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.