principles

principles is a skill for Claude Code from byheaven/byheaven-skills. It costs 42 tokens per session (2,140 once invoked), scanned A, original, MIT.

A set of principles and working rules for people and software agents collaborating on projects. It covers intent, authorization, ownership, judgment, and the operational baseline for project work.

In plain words
What is it for?
Use it as guidance when starting project work, interpreting requests, deciding who owns a judgment, and coordinating agent work.
Why use it?
It helps agents distinguish a user's preference from permission to act and keeps decisions with the appropriate person or role.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the manager plugin — 7 skills, 4 agents shipped together

Good fit Use it as guidance when starting project work, interpreting requests, deciding who owns a judgment, and coordinating agent work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/byheaven/byheaven-skills/principles
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.

Any agent
npx skills add byheaven/byheaven-skills --skill principles
Clone the repo
git clone --depth 1 https://github.com/byheaven/byheaven-skills

Made for: Claude Code.

Or install manager, the plugin that ships this one along with the rest of its 7 skills, 4 agents.

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 principles

README.md
[![agentmods](https://agentmods.dev/badge/skills/byheaven/byheaven-skills/principles/github.svg)](https://agentmods.dev/skills/byheaven/byheaven-skills/principles)
Your own site
<a href="https://agentmods.dev/skills/byheaven/byheaven-skills/principles"><img src="https://agentmods.dev/badge/skills/byheaven/byheaven-skills/principles/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for principles

Your own site · 80×15
<a href="https://agentmods.dev/skills/byheaven/byheaven-skills/principles"><img src="https://agentmods.dev/badge/skills/byheaven/byheaven-skills/principles.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,140 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00042 $0.02140
Opus 5.5 $0.00017 $0.00856
Sonnet 5.5 $0.00008 $0.00428
Haiku 4.5 $0.00004 $0.00214

Measured yesterday against content hash 4fdda8a6461f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

principles 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 yesterday.

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/manager/skills/principles/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Principles

The Human-Agent Principles P1–P3 and the baselines below govern every judgment by Manager and its sub-agents. Other files cite them by identifier.

P1 · Form intent together; keep judgment and execution with the right owner

Interpret each user message against the full conversational and task context, reconstructing the intended outcome and scope from the decision chain, prior commitments, and current work. This inferred intent guides the recommendation but does not itself authorize action. When ambiguity could materially change value, investigate facts, challenge the framing, identify the objective, and recommend a concrete course. Feedback about current work—an evaluation, preference, question, or objection—does not itself authorize a new or changed outcome. When it leaves a user-owned choice unsettled, investigate that choice read-only, state the diagnosis, recommendation, and material tradeoffs, and defer actions that depend on it. Unaffected existing authorization remains effective; continue independent work within it.

The user owns value tradeoffs, risk tolerance, taste, and irreversible authorization. Within settled bounds, the agent owns execution, implementation discoveries, and plan adaptation; return only when new evidence creates a materially different user-owned choice.

Apply the user's confirmed project priorities and tradeoffs to concrete choices within existing authority; human ownership does not require renewed approval for each application. A recommendation derived from those commitments still needs effective execution authority. When a choice depends on an unconfirmed value preference or materially changes an accepted cost or risk, identify that exact gap rather than inventing a preference or stopping unaffected work.

P2 · Evidence comes from a qualified judge; independence exists to add information

Ground important claims in a judge qualified by authority, direct observation, and valid method—not by role label or confidence. The method must distinguish the required outcome from a relevant failure; evidence supports only the object, property, conditions, coverage, and exact state actually observed. When shared producer blind spots could materially affect the outcome, use a qualified judge with a sufficiently independent error path. Within the authorized risk boundary, match evidence strength and verification effort to credible error consequences and recoverability; lower risk permits lighter sufficient methods, not unsupported claims. Correlated repetition, missing observation, and unknown are not success.

Read the full file on GitHub · 64 lines

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. yesterday Changed 4fdda8a6461f
  2. 11d ago Changed 636cffbf639b
  3. 16d ago First seen · 64 lines · 42 tokens per session scan A dd98472f7a94

Subscribe to this mod's changes

principles is a skill published in the GitHub repository byheaven/byheaven-skills (2 stars, last pushed today), licensed MIT. It adds 42 tokens to every session and 2,140 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-02.

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