skills.by true||false
LibraryHow to run

A product of true||false

Every item lists its source, license and what we changed.

library
skillthinkingtrueorfalse

adr

Captures one decision with its context, rejected options and consequences in a numbered, immutable record.

looks for

  • a technology or vendor choice
  • a change that is hard to reverse
  • a decision made in chat that nobody wrote down
  • why is it like this?

outputs

  • → {{ADR_DIR}}/NNNN-short-title.md
  • → an updated ADR index
drawing flowchart…
flow.mmd

SKILL.md

ADR

One decision per file. Short. Written when the decision is made, not months later.

File

{{ADR_DIR}}/NNNN-kebab-title.md, numbered in order, never reused.

Template

# NNNN. <Decision as a short statement>

- **Status:** proposed | accepted | superseded by NNNN | deprecated
- **Date:** YYYY-MM-DD
- **Deciders:** <roles>

## Context
What forces are at play: the problem, constraints, deadlines, what we know and
don't. 3–8 sentences. Link evidence (benchmarks, spikes, incidents).

## Options considered
1. **Option A** — one line. + pros. − cons.
2. **Option B** — …
3. **Do nothing** — always list it.

## Decision
We will … because …

## Consequences
- Good: …
- Bad / accepted cost: …
- Follow-ups: …

## Revisit when
<the signal or date that would reopen this>

Rules

  • Accepted ADRs are immutable. To change a decision, write a new ADR that supersedes it and update the old one's status line only.
  • Include "do nothing" and at least one real alternative.
  • Consequences include the bad ones.
  • Keep an index ({{ADR_DIR}}/README.md) with number, title, status.

Customize for your project

{{ADR_DIR}} (e.g. docs/adr), who signs off, and whether ADRs go through PR review.

audit trail

source
original
author
trueorfalse.dev
license
MIT
imported
2026-11-13
verified
2026-11-13
changes
Written new for the catalog.
privacy scan
pass
scripts
none
in the zip
1 file

works with

Claude, Codex, ChatGPT

pairs with

  • skilltrueorfalse

    decision-council

    Runs five opposing advisor views and a cross-examination, then a chair commits to one call and writes it up.

    • an irreversible or costly choice (architecture, pricing, build vs. drop, rewrite)
    • "council this", "second opinion", "should we…?"
    • a plan everyone already agrees with
    Claude · Codex · ChatGPT
  • personatrueorfalse

    tech-lead

    Locks contracts and architecture decisions before specialists build, and unblocks them when the design is unclear.

    • a change that crosses module or service boundaries
    • a new or changed endpoint, event or table
    • a proposed new dependency
    Claude · Codex · ChatGPT
  • skilltrueorfalse

    package-choice

    Runs a dependency decision tree and recommends stdlib, an existing dep, a default pick or a small local function.

    • a new entry in package.json / requirements / Cargo.toml
    • two libraries that overlap (two date libs, two HTTP clients)
    • a heavy package used for one function
    Claude · Codex · ChatGPT
  • personatrueorfalse

    docs-scribe

    Updates the docs that a change made stale, documenting only what was actually built.

    • a new or changed endpoint
    • a new table, column or model field
    • a new folder or module without a map
    Claude · Codex · ChatGPT