daraja-credentials-security SKILL.md skillA

daraja-credentials-security from mr-macharia/mpesa-daraja-skills-and-mcp is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add mr-macharia/mpesa-daraja-skills-and-mcp/daraja-credentials-security@git:20261021.84f51bc

Pins git:20261021.84f51bc in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
mr-macharia/mpesa-daraja-skills-and-mcp
Path
skills/daraja-credentials-security/SKILL.md
Versions recorded
3
Latest version
git:20261021.84f51bc, committed Oct 21, 2026
First version recorded
Oct 19, 2026
Size
4,145 bytes
Repository stars
3
License
MIT

Manages Safaricom Daraja secrets safely (Consumer Key and Secret, M-Pesa Express passkey, initiator password, SecurityCredential) and generates the SecurityCredential by RSA-encrypting the initiator password with Safaricom's sandbox or production certificate. Covers .env files versus secret managers, fail-fast config, log masking, rotation and leak response. Use when wiring M-Pesa configuration, generating a SecurityCredential, or handling 2001, 18 or 8006 initiator errors.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Daraja credentials and security

## Secret inventory

| Secret | Grants | Sensitivity |
|---|---|---|
| Consumer Key and Secret | Tokens: calling every API on the app | High |
| Passkey | Signing STK requests for the shortcode | High |
| Initiator name and password | B2C, B2B, tax, reversal, status, balance | **Critical** (moves money out) |
| SecurityCredential | Encrypted initiator password. Replayable | **Critical** |
| Access token | One hour of API access | Medium. Keep it in memory or cache only |

## Storage

1. **Never hardcode secrets.** Git history keeps them even after deletion.
2. **Development**: a `.env` file plus `python-dotenv`/`dotenv`. The file is in `.gitignore`, has `chmod 600`, and a `.env.example` without values is committed.
3. **Production**: a secret manager (AWS Secrets Manager/SSM, GCP Secret Manager, Azure Key Vault, Vault, K8s/Docker secrets), injected at runtime with least-privilege access and audit logs.
4. Keep separate credentials per environment, and **no default fallback values in code**.

Fail fast at startup:

```python
REQUIRED = ["DARAJA_CONSUMER_KEY", "DARAJA_CONSUMER_SECRET", "DARAJA_SHORTCODE", "DARAJA_PASSKEY"]
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add mr-macharia/mpesa-daraja-skills-and-mcp/daraja-credentials-security@sha256:fa80029fed9a908b

The line at the top of this page pins the label git:20261021.84f51bc, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_gn3idvuqmdgsldur.svg)](https://markdownregistry.com/a/art_gn3idvuqmdgsldur)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Oct 19, 2026 and Oct 21, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261021.84f51bc latest2026-10-21 84f51bc 4,145 BA view · diff
git:20261019.9e3c9152026-10-19 9e3c915 4,135 BA view · diff
git:20261019.15b81092026-10-19 15b8109 3,729 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (4145 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

mr-macharia/mpesa-daraja-skills-and-mcp · 3 stars · license MIT · pushed 2026-11-03 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_gn3idvuqmdgsldur
GET https://markdownregistry.com/api/v1/resolve?ref=mr-macharia/mpesa-daraja-skills-and-mcp/daraja-credentials-security
GET https://markdownregistry.com/api/v1/blob/fa80029fed9a908b68c8ef784a7570522c5cec2e82b44257060afc136d4ddc7a

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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