decision

Project-decision records stored as Beads issues with the reasoning behind each choice. They can include alternatives considered and links to affected work.

In plain words
What is it for?
Record decisions with a title, rationale, alternatives, priority, and affected issue links, then list or manage those decision records.
Why use it?
They preserve why a decision was made, so later contributors do not have to reconstruct the discussion or repeat rejected options.

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/gastownhall/beads/decision
Clone the repo
git clone --depth 1 https://github.com/gastownhall/beads
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 666 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 $0.00011 $0.00666
Opus 5 $0.00005 $0.00333
Sonnet 5 $0.00002 $0.00133
Haiku 4.5 $0.00001 $0.00067

Measured yesterday against content hash 78c0de4a0979, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

decision 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • decision — 94% identical, 4 lines differ
plugins/beads/skills/beads/commands/decision.md · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Record and track project decisions as beads issues with structured rationale, alternatives considered, and links to affected work.

Decisions use --type decision. The description field holds the structured decision record.

Record a Decision

When the user wants to record a decision (i.e. the record action of this command):

  1. Gather the following (ask if not provided):

    • Title: Short summary of what was decided (required)
    • Rationale: Why this was chosen (required)
    • Alternatives: What else was considered (optional but encouraged)
    • Affects: Issue IDs this decision impacts (optional)
    • Priority: How important (default P2)
  2. Create the issue with structured description:

bd create "<title>" --type decision \
  --description "$(cat <<'EOF'
## Decision

<one-sentence summary of what was decided>

## Rationale

<why this was chosen>

## Alternatives Considered

- **<alt 1>**: <why rejected>
- **<alt 2>**: <why rejected>

## Affects

- <issue IDs or area descriptions>
EOF
)"
  1. If --affects issue IDs were provided, link them:
bd dep add <decision-id> <affected-id> --type related
  1. Show the created decision to the user.

List Decisions

bd list --type decision

To see all decisions including closed/superseded:

bd list --type decision --all

Show a Decision

bd show <decision-id>

Include comments for discussion history:

bd comments <decision-id>

Supersede a Decision

When a decision is replaced by a new one:

  1. Record the new decision (as above)
  2. Link the new decision to the old one:
    bd dep add <new-id> <old-id> --type related
    
  3. Add a comment on the old decision:
    bd comments add <old-id> "Superseded by <new-id>: <brief reason>"
    
  4. Close the old decision:
    bd close <old-id> --reason "Superseded by <new-id>"
    

Add Context to an Existing Decision

Use comments to append discussion, implementation notes, or revisit rationale:

bd comments add <decision-id> "Implementation note: ..."

Read the full file on GitHub · 112 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 · 112 lines · 11 tokens per session scan A 78c0de4a0979

Subscribe to this mod's changes

decision is a command published in the GitHub repository gastownhall/beads (26,754 stars, last pushed yesterday), licensed MIT. It adds 11 tokens to every session and 666 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.