capture

A command for saving a decision, lesson, blocker, or progress update in a Git-backed memory system. The saved information can later be retrieved through semantic search, which finds related meaning rather than only exact words.

In plain words
What is it for?
It is for storing decisions, learnings, obstacles, and progress so they can be found and reused later.
Why use it?
It keeps useful project knowledge from being lost between work sessions and records it alongside the code repository.

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/zircote/git-notes-memory/capture
Clone the repo
git clone --depth 1 https://github.com/zircote/git-notes-memory
Per session 20 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,599 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 $0.00020 $0.01599
Opus 5 $0.00010 $0.00800
Sonnet 5 $0.00004 $0.00320
Haiku 4.5 $0.00002 $0.00160

Measured yesterday against content hash 1e127cf54779, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

capture 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.

commands/capture.md · 201 lines

How it starts

The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.

<help_check>

Help Check

If $ARGUMENTS contains --help or -h:

Output this help and HALT (do not proceed further):

<help_output>

CAPTURE(1)                                           User Commands                                           CAPTURE(1)

NAME
    capture - Capture a memory (decision, learning, blocker, progress...

SYNOPSIS
    /memory:capture [namespace] <summary> -- <content>

DESCRIPTION
    Capture a memory (decision, learning, blocker, progress, etc.) to the git-backed memory system

OPTIONS
    --help, -h                Show this help message

EXAMPLES
    /memory:capture
    /memory:capture <namespace>
    /memory:capture --help

SEE ALSO
    /memory:* for related commands

                                                                      CAPTURE(1)

</help_output>

After outputting help, HALT immediately. Do not proceed with command execution. </help_check>


/memory:capture - Capture a Memory

Capture information to the git-backed memory system for later retrieval.

Your Task

You will help the user capture a memory. The memory will be stored as a git note and indexed for semantic search.

Arguments format: $ARGUMENTS

Parse the arguments:

  1. If first word matches a known namespace, use it as the namespace
  2. Look for -- separator: text before is summary, text after is content
  3. If no -- separator, use the entire text as both summary (truncated) and content

Valid namespaces: decisions, learnings, blockers, progress, reviews, patterns, retrospective, inception, elicitation, research

If no namespace specified, auto-detect based on content patterns:

  • Contains "decided", "chose", "will use" → decisions
  • Contains "learned", "discovered", "TIL", "found out" → learnings
  • Contains "blocked", "stuck", "cannot", "impediment" → blockers
  • Contains "completed", "finished", "milestone" → progress
  • Contains "pattern", "recurring", "often" → patterns
  • Default → learnings

Read the full file on GitHub · 201 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 First seen · 201 lines · 20 tokens per session scan A 1e127cf54779

Subscribe to this mod's changes

capture is a command published in the GitHub repository zircote/git-notes-memory (4 stars, last pushed 8mo ago), licensed MIT. It adds 20 tokens to every session and 1,599 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 2026-08-31.