diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
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+++ b/CODE_OF_CONDUCT.md
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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity and
+orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+- Demonstrating empathy and kindness toward other people
+- Being respectful of differing opinions, viewpoints, and experiences
+- Giving and gracefully accepting constructive feedback
+- Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+- Focusing on what is best not just for us as individuals, but for the overall
+  community
+
+Examples of unacceptable behavior include:
+
+- The use of sexualized language or imagery, and sexual attention or advances of
+  any kind
+- Trolling, insulting or derogatory comments, and personal or political attacks
+- Public or private harassment
+- Publishing others' private information, such as a physical or email address,
+  without their explicit permission
+- Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the maintainers via
+[GitHub private vulnerability reporting](https://github.com/bkd-dotcom/umbra-precommit/security/advisories/new)
+or by opening a confidential issue. All complaints will be reviewed and
+investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 2.1, available at
+<https://www.contributor-covenant.org/version/2/1/code_of_conduct.html>.
+
+[homepage]: https://www.contributor-covenant.org
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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+++ b/CONTRIBUTING.md
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+# Contributing to umbra-precommit
+
+Thanks for contributing! This is an **integration** for the Umbra platform — a thin
+adapter that governs a coding agent through the [`umbra-core`](https://github.com/bkd-dotcom/umbra-core)
+admission pipeline. It never reimplements governance policy.
+
+## Good contributions
+
+- Fixes / improvements to the guard, hook, MCP wiring, or setup docs for this
+  integration.
+- Better install ergonomics, examples, or troubleshooting.
+
+## Ground rules
+
+- **Governance logic stays in `umbra-core`** — this repo adapts an agent to it,
+  nothing more. Depend on a pinned `umbra-core` (`>=0.5.0`).
+- **Never auto-merge.** `auto_merge` is always false; a human merges.
+- Fail closed on the hard gate; a soft guard may fail open only with a loud
+  `INACTIVE`.
+- Be kind — see [CODE_OF_CONDUCT.md](CODE_OF_CONDUCT.md). Report security issues via
+  [private advisory](https://github.com/bkd-dotcom/umbra-precommit/security/advisories/new), not a
+  public issue.
+
+New to Umbra? Start at the [umbrella overview](https://github.com/bkd-dotcom/umbra-umbrella).
diff --git a/README.md b/README.md
index 8022f62..94b0f6d 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 **Govern coding-agent changes at the git boundary — pre-commit, pre-push, or CI.**
 
+[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](CONTRIBUTING.md) [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
 The universal, editor-agnostic guard for [umbra-core](https://github.com/bkd-dotcom/umbra-core):
 a deterministic pre-action check that blocks changes falling outside your repo's
 `.umbra/admission.yaml` scope, before they're committed or pushed.