profile

A command for managing rule profiles: configurable preferences for roles, technology stacks, architectures, and delivery methods.

In plain words
What is it for?
Use it to create, inspect, and locate merged user or project profiles that customise Memory Bank behaviour.
Why use it?
It lets guidance fit a person or project while keeping the non-negotiable safety rules active.

Command

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 commands/fockus/skill-memory-bank/profile
Clone the repo
git clone --depth 1 https://github.com/fockus/skill-memory-bank
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,271 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 $0.00018 $0.01271
Opus 5 $0.00009 $0.00635
Sonnet 5 $0.00004 $0.00254
Haiku 4.5 $0.00002 $0.00127

Measured 3d ago against content hash d9d871a44bc6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

profile 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 3d 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.

commands/profile.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/profile — Rule profiles & stack presets

The /profile command manages Memory Bank rule profiles: configurable per-role, per-stack, per-architecture, and per-delivery-method rules that sit on top of the immutable safety baseline.

Underlying script: scripts/mb-profile.sh.


Purpose

Memory Bank rules have two layers:

  1. Immutable safety baseline — always active, cannot be disabled by any profile, task instruction, or user choice (see below).
  2. Configurable preferences — role, stack, architecture, delivery presets that personalize guidance without weakening safety.

/profile controls the configurable layer. It reads from and writes to:

  • User-global profile: <agent-config>/memory-bank/rules-profile.json (e.g. ~/.claude/memory-bank/rules-profile.json). No project files are written — works even when [MEMORY BANK: ABSENT].
  • Project profile: <resolved-mb>/rules-profile.json (requires an active Memory Bank).

Subcommands

Subcommand One-liner
init Create a new profile interactively or via flags
show Print the resolved merged profile (all layers)
path Print the active profile path and which layer it came from
validate Validate a profile file — exits 0 if valid, 1 with errors otherwise
set Update a single field in user or project profile

Usage examples

# Create a user-global backend/Go profile (no project Memory Bank needed):
mb-profile.sh init --scope=user --role=backend --stack=go \
  --architecture=microservices --delivery=contract-first

# Create a project-scoped frontend/TypeScript profile:
mb-profile.sh init --scope=project --role=frontend --stack=typescript \
  --architecture=fsd --delivery=sdd

# Create a mobile/generic profile:
mb-profile.sh init --scope=user --role=mobile --stack=generic \
  --architecture=mobile-udf --delivery=api-first

# Create a Python data service profile:
mb-profile.sh init --scope=project --role=backend --stack=python \
  --architecture=modular-monolith --delivery=tdd

# Create a Java DDD profile:
mb-profile.sh init --scope=project --role=backend --stack=java \
  --architecture=ddd --delivery=api-first

# Show the resolved profile (user + project merged):
mb-profile.sh show

# Show where the active profile file lives:
mb-profile.sh path

# Validate an existing profile:
mb-profile.sh validate .memory-bank/rules-profile.json

# Update a single field (project scope):
mb-profile.sh set --scope=project --strictness=block

Read the full file on GitHub · 145 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. 3d ago First seen · 145 lines · 18 tokens per session scan A d9d871a44bc6

Subscribe to this mod's changes

profile is a command published in the GitHub repository fockus/skill-memory-bank (25 stars, last pushed 1mo ago), licensed MIT. It adds 18 tokens to every session and 1,271 once invoked, about $0.0001 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.