context

A helper that loads project knowledge files for a chosen area, such as the API, database, authentication, building, or security. It reads shared project rules, architecture notes, and lessons before work begins.

In plain words
What is it for?
Use it at the start of a session or when changing topics to load the files relevant to a task, then receive a short summary before continuing.
Why use it?
Important project decisions and rules may be spread across many files. Loading the relevant context helps an agent follow the project's existing practices.

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/brain-bootstrap/claude-code-brain-bootstrap/context
Any agent
npx skills add brain-bootstrap/claude-code-brain-bootstrap --skill context
Clone the repo
git clone --depth 1 https://github.com/brain-bootstrap/claude-code-brain-bootstrap

Made for: Claude Code, Codex.

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 390 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 $0.00043 $0.00390
Opus 5 $0.00022 $0.00195
Sonnet 5 $0.00009 $0.00078
Haiku 4.5 $0.00004 $0.00039

Measured 2d ago against content hash 410198f1b465, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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.

.claude/skills/context/SKILL.md · 47 lines

What it actually says

Context Skill

Load all relevant claude/ knowledge files for a domain area before starting work.

Usage

/context               # Load core context (architecture + rules + lessons)
/context api           # Load API-specific context
/context database      # Load database-specific context
/context auth          # Load auth-specific context
/context build         # Load build/CI context
/context security      # Load security/CVE context

Domain → Files Mapping

Always read:

  1. claude/tasks/lessons.md — accumulated wisdom from past sessions
  2. claude/architecture.md — system overview
  3. claude/rules.md — golden rules

Then based on keyword:

Keyword Files to read
build / test / CI / lint claude/build.md
MR / PR / ticket / template claude/templates.md
CVE / security / dependency claude/cve-policy.md
terminal / command / shell claude/terminal-safety.md
plugin / MCP / tool claude/plugins.md

After Loading

Provide a brief summary of the loaded context and ask what task to perform.

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 · 47 lines · 43 tokens per session scan A 410198f1b465

Subscribe to this mod's changes

context is a skill published in the GitHub repository brain-bootstrap/claude-code-brain-bootstrap (11 stars, last pushed 4mo ago), licensed MIT. It adds 43 tokens to every session and 390 once invoked, about $0.0002 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.

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