context-modes

context-modes is a skill for Claude Code from 0xNyk/lacp. It costs 77 tokens per session (282 once invoked), scanned A, original, MIT.

A set of selectable work modes that changes how a coding agent approaches a session, such as writing tests first, investigating bugs, planning, reviewing, or checking evidence.

In plain words
What is it for?
Use it to start sessions in modes such as TDD (write a failing test, then code, then clean up), debugging, sprint planning, verification, brainstorming, or task breakdown.
Why use it?
It gives the agent a defined way to work instead of relying on an unspecified style for every task.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the lacp-hardening plugin — 3 skills, 1 command shipped together

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/0xnyk/lacp/context-modes
Any agent
npx skills add 0xNyk/lacp --skill context-modes
Clone the repo
git clone --depth 1 https://github.com/0xNyk/lacp

Made for: Claude Code.

Or install lacp-hardening, the plugin that ships this one along with the rest of its 3 skills, 1 command.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for context-modes

README.md
[![agentmods](https://agentmods.dev/badge/skills/0xnyk/lacp/context-modes.svg)](https://agentmods.dev/skills/0xnyk/lacp/context-modes)
Your own site
<a href="https://agentmods.dev/skills/0xnyk/lacp/context-modes"><img src="https://agentmods.dev/badge/skills/0xnyk/lacp/context-modes.svg" alt="Measured on agentmods" height="20"></a>
Per session 77 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 282 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 5.1 $0.00077 $0.00282
Opus 5 $0.00039 $0.00141
Sonnet 5 $0.00015 $0.00056
Haiku 4.5 $0.00008 $0.00028

Measured 6d ago against content hash 30a6cf12fdb0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

context-modes 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 6d 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.

plugin/skills/context-modes/SKILL.md · 25 lines

What it actually says

Context Modes

Set LACP_CONTEXT_MODE environment variable to activate a mode:

Mode Purpose
tdd Strict RED-GREEN-REFACTOR — no code without a failing test
debugging 4-phase systematic root cause investigation
sprint Pre-agreed completion criteria evaluated at stop
verification Evidence-before-claims discipline
brainstorm Design exploration — no code until design approved
think Pause-and-reflect before every action chain
orchestrate Decompose into subtasks before executing
implementation Focused implementation partner
review Code review mode
thinking-partner Challenge assumptions, surface blind spots
handoff-resume Continue from previous session handoff

Each mode is a markdown file that gets injected as system context at session start.

Files

What ships with it

11 files 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. 6d ago First seen · 25 lines · 77 tokens per session scan A 30a6cf12fdb0

Subscribe to this mod's changes

context-modes is a skill published in the GitHub repository 0xNyk/lacp (303 stars, last pushed 16d ago), licensed MIT. It adds 77 tokens to every session and 282 once invoked, about $0.0004 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.

Related

Other skills, from other repositories

agent-harness-fault-injection

Use when an agent workflow needs deterministic recovery evidence for sandbox, MCP/tool, worker, checkpoint, memory, or orchestration failures.

sickn33/agentic-awesome-skills · 34 tokens

gen-test

Generate idiomatic tests for Go packages and handlers in the Meshery project.

meshery/meshery · 18 tokens

oma-scholar

Scholarly research companion using Knows sidecar spec (.knows.yaml). Generates, validates, reviews, queries, and compares structured research-paper sidecars, and fetches them from knows.academy. Use for academic literature search, survey synthesis, paper authoring assistance, and peer review with token-efficient…

first-fluke/oh-my-agent · 73 tokens

oma-hwp

Convert HWP / HWPX / HWPML files to Markdown using kordoc. Extracts text, headings, tables, lists, images, footnotes, and hyperlinks. Use for Korean word processor files (Hangul), government documents, and AI-ready data preparation.

first-fluke/oh-my-agent · 59 tokens

compare-harnesses

Diff two scaffolded harnesses (ADR-031). Reports manifest meta drift + host list + per-file fingerprint changes (added/removed/changed). Exits 0 IDENTICAL, 1 DRIFT, 2 missing manifest. Use --bundle for the ADR-031 schema-1 JSON envelope.

ruvnet/metaharness · 66 tokens

repo-genome

7-section readiness scorecard for a LOCAL repo. Reports repo type + agent topology + MCP risk + test confidence + release readiness + recommended harness plan + scorecard. Exit 0 ready, 1 needs-work, 2 blocked. --json for the 6-field scorecard, --bundle for the ADR-031 schema-1 envelope.

ruvnet/metaharness · 73 tokens