captain-capture

captain-capture is a skill for Claude Code from ramarahmanda/tsubasa. It costs 58 tokens per session (528 once invoked), scanned A, original, MIT.

A workflow for recording an accepted technical decision as an architecture decision record, a document explaining an important design choice, and as an event in a knowledge graph.

In plain words
What is it for?
Capturing accepted designs or plans, linking them to project goals and related entities, and documenting their consequences.
Why use it?
It prevents agreed decisions, their related goals, and any superseded choices from being forgotten.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the tsubasa plugin — 5 skills, 4 hooks shipped together

Good fit Capturing accepted designs or plans, linking them to project goals and related entities, and documenting their consequences.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ramarahmanda/tsubasa/capture
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 ramarahmanda/tsubasa --skill capture
Clone the repo
git clone --depth 1 https://github.com/ramarahmanda/tsubasa

Made for: Claude Code.

Or install tsubasa, the plugin that ships this one along with the rest of its 5 skills, 4 hooks.

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 captain-capture

README.md
[![agentmods](https://agentmods.dev/badge/skills/ramarahmanda/tsubasa/capture.svg)](https://agentmods.dev/skills/ramarahmanda/tsubasa/capture)
Your own site
<a href="https://agentmods.dev/skills/ramarahmanda/tsubasa/capture"><img src="https://agentmods.dev/badge/skills/ramarahmanda/tsubasa/capture.svg" alt="Measured on agentmods" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 528 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 $0.00058 $0.00528
Opus 5 $0.00029 $0.00264
Sonnet 5 $0.00012 $0.00106
Haiku 4.5 $0.00006 $0.00053

Measured 7d ago against content hash 44c79be7612f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

captain-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 7d 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.

plugin/skills/capture/SKILL.md · 40 lines

What it actually says

Captain capture

A decision was just accepted in conversation. Persist it — this is the moment that makes the Captain the one who "remembers everything".

Steps

  1. Determine: decision title, domain(s), impact (high/medium/low), which existing entities it touches, and whether it supersedes a previous decision (check tsubasa query "<topic>" first). Also check tsubasa goal list — every plan/design must state, in one line, how it aligns or conflicts with each relevant open goal ("supports goal-decommission-legacy-sso" / "⚠ conflicts with goal-x because…"). Link supporting work with a --relation <adr>:works_toward:<goal-id>.
  2. Validation gate — one line, before writing anything: Saving: adr-<slug>, links to <entities>[, supersedes <old>]. OK? If it supersedes something recent or load-bearing, ask the one question that captures the WHY (e.g. "that ADR chose Kafka for ordering — has that requirement changed?") and put the answer in the event body.
  3. On confirmation:
    • Draft the ADR at docs/adr/adr-<slug>.md (title, status: accepted, date, context, decision, consequences — cite prior incidents/ADRs from the graph).
    • tsubasa event add --type decision --title "..." --impact <i> --domains <d> \ --ref adr:adr-<slug> [--supersedes <old-entity-id>] \ --entity adr-<slug>:adr:"<title>":"<one-line>" --body "..."
  4. Tell the user the branch convention: include adr-<slug> in the branch or PR name so the work threads back to this decision.

Rules

  • ADR ids: adr-<kebab-slug>, stable forever, they are the thread that links decision → branch → PR → code.
  • Never store secret values; secret-refs only (name/location).
  • One decision = one event. Do not batch.
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. 7d ago First seen · 40 lines · 58 tokens per session scan A 44c79be7612f

Subscribe to this mod's changes

captain-capture is a skill published in the GitHub repository ramarahmanda/tsubasa (8 stars, last pushed 9d ago), licensed MIT. It adds 58 tokens to every session and 528 once invoked, about $0.0003 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.

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