The problem
Many teams say they practise Trunk-Based Development but in day-to-day reality things deviate:
- Commit messages become inconsistent. Everyone formats them a little differently.
- Branches that were meant to live for hours stick around for days.
- Merging back to main turns into a manual sequence people half-remember.
- Two people change the same file and nobody notices until a push fails.
- The Definition of Done exists, but it lives in a document no one looks at during the work.
None of this breaks the build immediately. But over time, the trunk stops feeling safe to work in.
The solution
tbdflow is a small CLI that codifies your team's Trunk-Based workflow so the safe path is always the easiest path.
It handles the ceremony (pulling, rebasing, linting, pushing) so you can stay focused on the work.

What it does
| Pain point | How tbdflow helps |
|---|---|
| Inconsistent commits | tbdflow commit enforces Conventional Commits with built-in linting |
| Long-lived branches | tbdflow branch + tbdflow complete with stale-branch warnings |
| "Did I pull before pushing?" | tbdflow sync + auto-rebase before every commit to main |
| Pulling a broken trunk | tbdflow sync pre-flight CI check warns before pulling a red build |
| Merge conflicts you didn't see | tbdflow radar shows who else is touching the same files, before you push |
| "Why was this done?" | tbdflow task + tbdflow note captures intent before it's lost |
Philosophy
- Main is where the work happens.
tbdflow commitis your daily driver: pull, commit, push, done. Small and frequent beats large and delayed. - Branches are short-lived guests. They're supported, but they should check out quickly.
- Cleanup shouldn't be your job. Completed branches get merged, tagged (for releases), and deleted automatically.
- Commit messages should tell a story. Conventional Commits keep the history readable for humans and machines alike.
- Collaboration should be visible.
tbdflow radarshows who else is touching the same files, turning silent conflicts into early conversations.
Why not just use Git?
You absolutely should. tbdflow isn't a replacement. You'll still reach for raw git when rebasing, cherry-picking,
or bisecting.
Think of it as a workflow assistant that wraps the repeatable parts of your day:
-
Everyone does it the same way. Commits, branches, and releases follow the same steps every time. No more "how did you format that commit again?"
-
Less to keep in your head. You don't need to remember
pull --rebasethen commit then push then tag then delete branch. The CLI does. -
The TBD path is the easy path. For 80% of your day,
tbdflowkeeps you in the flow. For the other 20%, Git is right there.
Installation
You need Rust and Cargo installed.
Installing from crates.io
To update to the latest version:
Building from source
Or build it yourself:
Monorepo Support
If you work in a monorepo, tbdflow understands that not every commit should touch every directory.
When you run tbdflow commit, tbdflow sync or tbdflow status from the repo root, only root-level files are
affected. Project subdirectories are left alone. Run the same commands from inside a project directory and they
automatically scope to that directory. (Run tbdflow init in each subdirectory to set this up.)
This is configured in your root .tbdflow.yml file:
# in .tbdflow.yml
monorepo:
enabled: true
# A list of all directories that are self-contained projects.
# These will be excluded from root-level commits and status checks.
project_dirs:
- "frontend"
- "backend-api"
- "infra"
For an overview and to inspect your current configuration, you can run tbdflow info.
Handling Cross-Cutting Changes
For "vertical slice" changes that intentionally touch multiple project directories, you can use the --include-projects
flag.
This flag overrides the default safety mechanism and stages all changes from all directories, allowing you to create a
single, cross-cutting commit.
Interactive Wizard Mode
To make tbdflow even more user-friendly, the core commands (branch, commit, complete, changelog) now feature
an interactive "wizard" mode.
If you run one of these commands without providing the required flags, tbdflow will automatically launch a
step-by-step guide.
This is perfect for new users who are still learning the workflow, or for complex commits where you want to be sure
you've covered all the options.
For power users, the original flag-based interface is still available for a faster, scripted experience.
Configuration
tbdflow is configurable via two optional files in the root of your repository. To get started quickly, run
tbdflow init to generate default versions of these files.
.tbdflow.yml
This file controls the core workflow of the tool. You can customise:
- The name of your main branch (e.g. main, trunk).
- Allowed branch types and their prefixes (e.g feat/, chore/)
- A strategy for handling issue references ("branch-name" or "commit-scope")
- The threshold for stale branch warnings.
- Automatic tagging formats.
- Commit message linting rules.
Note:
main_branch_nameconfigures which branch is your trunk (typicallymainormaster). tbdflow assumes this branch accepts direct commits. For protected branches, use short-lived feature branches withtbdflow branch.
.dod.yml
This file controls the interactive Definition of Done checklist for the commit command.
Features
The Definition of Done (DoD) Check
Most teams have a Definition of Done. Most of the time, it lives in a wiki nobody opens mid-task.
If you add a .dod.yml to your repo, tbdflow commit will surface the checklist right when it matters, before you
push. It's optional, non-blocking, and stays out of your way when you don't need it.
Example .dod.yml:
# .dod.yml in your project root
checklist:
- "All relevant automated tests pass successfully."
- "New features or fixes are covered by new tests."
- "Security implications of this change have been considered."
- "Relevant documentation (code comments, READMEs) is updated."
If you skip items, tbdflow offers to add a TODO list to the commit footer so the incomplete work is tracked in
Git history, not lost in a chat thread.
Commit Message Linting
Your .tbdflow.yml can include linting rules that catch issues before the commit happens: subject too long, wrong
type, missing scope. Quick feedback, no surprises in the log later.
Default linting rules:
lint:
conventional_commit_type:
enabled: true
allowed_types:
- build
- chore
- ci
- docs
- feat
- fix
- perf
- refactor
- revert
- style
- test
issue_key_missing:
enabled: false
pattern: ^[A-Z]+-\d+$
scope:
enabled: true
enforce_lowercase: true
subject_line_rules:
max_length: 72
enforce_lowercase: true
no_period: true
body_line_rules:
max_line_length: 80
leading_blank: true
Intent Log
You tried three approaches before settling on the final one. By the time you commit, the first two are gone. From your memory and from the diff. A week later, a reviewer suggests one of the approaches you already rejected.
The Intent Log fixes this. While you work, you drop one-line breadcrumbs. At commit time, they're woven into the message body automatically. Zero context-switching, full context for whoever reads the commit next.
Start a task (optional):
Leave notes as you work:
The note command has two shorthand aliases: + and n.
Notes are consumed at commit time:
When you run tbdflow commit, the notes are appended to the commit body automatically:
feat(auth): implement trait-based auth logic
Intent Log:
- tried factory pattern, felt too verbose
- switching to a simple trait implementation
- trait approach is cleaner, keeping it
Other task commands:
Branch awareness:
The intent log tracks which branch it belongs to. If you switch branches, tbdflow warns you about the stale log so notes from one task don't leak into another commit.
File: Notes are stored locally in .tbdflow-intent.json (git-ignored, never committed). The file is deleted
automatically after a successful push to trunk or after tbdflow complete.
Global options
| Flag | Description | Required |
|---|---|---|
| --verbose | Prints the underlying Git commands as they are executed. | No |
| --dry-run | Simulate the command without making any changes. | No |
Commands
1. commit
This is the primary command for daily work.
Commits staged changes using a Conventional Commits message. This command is context-aware:
- On
main: It runs the full TBD workflow: pulls the latest changes with rebase, commits, and pushes. - On any other branch: It simply commits and pushes, allowing you to save work-in-progress.
Usage:
Options:
| Flag | Option | Description | Required |
|---|---|---|---|
| -t | --type | The type of commit (e.g., feat, fix, chore). | Yes |
| -s | --scope | The scope of the changes (e.g., api, ui). | No |
| -m | --message | The descriptive commit message (subject line). | Yes |
| --body | Optional multi-line body for the commit message. | No | |
| -b | --breaking | Mark the commit as a breaking change. | No |
| --breaking-description | Provide a description for the 'BREAKING CHANGE:' footer. | No | |
| --tag | Optionally add and push an annotated tag to this commit. | No | |
| --issue | Optionally add an issue reference to the footer. | No | |
| --no-verify | Bypass the interactive DoD checklist. | No |
Example:
# A new feature
# A bug fix with a breaking change
# A bug fix with a new tag
2. branch
Creates and pushes a new, short-lived branch from the latest version of main. This is the primary command for starting
new work that isn't a direct commit to main.
Usage:
Options (release):
| Flag | Description | Required |
|---|---|---|
| -t, --type | The type of branch (e.g. feat, fix, chore). See .tbdflow.yml for allowed types. | Yes |
| -n, --name | A short, desriptive name for the branch. | Yes |
| --issue | Optional issue reference to include in the branch name or commit scope. | No |
| -f, --from_commit | Optional commit hash on main to branch from. |
No |
Examples:
# Create a simple feature branch named "feat/new-dashboard"
# Create a fix branch with an issue reference in the name
# (This will be named "fix/PROJ-123-login-bug" by default)
# Create a release branch from a specific commit
3. complete
Merges a short-lived branch back into main, then deletes the local and remote copies of the branch.
Automatic Tagging:
- When completing a release branch, a tag (e.g. v2.1.0) is automatically created and pushed.
Usage:
Options:
| Flag | Option | Description | Required |
|---|---|---|---|
| -t | --type | The type of branch: feature, release, or hotfix. | Yes |
| -n | --name | The name or version of the branch to complete. | Yes |
Examples:
# Complete a feature branch
# Complete a release branch (this will be tagged v2.1.0)
4. changelog
Generates a changelog in Markdown format from your repository's Conventional Commit history. See tbdflow repo for a
CHANGELOG.md generated by this command.
Usage:
Options:
| Option | Description |
|---|---|
| --unreleased | Generate a changelog for all commits since the last tag. |
| --from | Generate a changelog for commits from a specific tag. |
| --to | Generate a changelog for commits up to a specific tag (defaults to HEAD). |
Examples:
# Generate a changelog for a new version
# See what will be in the next release
5. review
Manages non-blocking post-commit reviews for trunk-based development. In TBD, code is committed to trunk first and reviewed asynchronously, this command facilitates that workflow by creating GitHub issues for review tracking.
Philosophy:
In Trunk-Based Development, reviews are for course correction and knowledge sharing, not gatekeeping. Code is already in trunk; reviewers focus on Intent, Impact, and Insight.
Usage:
Options:
| Option | Description |
|---|---|
| <sha> | Trigger a review for a specific commit (positional argument). |
| --trigger | Create a review request for the current HEAD commit. |
| --digest | Generate a digest of commits needing review. |
| --approve <hash> | Mark a commit as approved (closes issue with review-accepted). |
| --concern <hash> | Raise a concern on a commit (keeps issue open, adds review-concern). |
| --dismiss <hash> | Dismiss a review (closes issue with review-dismissed). |
| -m, --message | Message for concern or dismiss (required with --concern/--dismiss). |
| --since <time> | Time range for digest (default: "1 day ago"). |
| --reviewers <users> | Override default reviewers (comma-separated GitHub usernames). |
Examples:
# Create a review issue for a specific commit
# Create a review issue for the latest commit (HEAD)
# See commits from the last 3 days that may need review
# Mark a commit as reviewed (closes the associated GitHub issue)
# Raise a concern on a commit (keeps issue open, notifies author)
# Dismiss a review without fixing (closes issue)
Review Labels (Nuanced Statuses)
tbdflow uses configurable labels to track review status throughout the lifecycle:
| Label | Description | Issue State |
|---|---|---|
review-pending |
Review awaiting attention (default on creation) | Open |
review-concern |
Concern raised - needs attention from author | Open |
review-accepted |
Review approved | Closed |
review-dismissed |
Review dismissed (won't fix) | Closed |
Concern Workflow:
When you raise a concern with --concern:
- The issue label changes from
review-pendingtoreview-concern - A comment is added to the issue with the concern message
- A checklist item is appended to the issue body:
- [ ] <concern> - (Optional) A commit status is set based on
concern_blocks_statusconfig
This is always non-blocking, concerns are informational and encourage fix-forward patterns.
Configuration:
Enable the review system in your .tbdflow.yml:
review:
enabled: true
strategy: github-issue # or "github-workflow" or "log-only"
default_reviewers:
- teammate-username
- another-reviewer
# Optional: Customise label names (defaults shown)
labels:
pending: "review-pending"
concern: "review-concern"
accepted: "review-accepted"
dismissed: "review-dismissed"
# Optional: Set commit status to 'failure' when concern is raised
# If false (default), status is 'pending' with description
concern_blocks_status: false
Commit Status Behaviour:
When concern_blocks_status is configured:
| Setting | Status State | Description |
|---|---|---|
false (default) |
pending |
"Awaiting fix-forward for concern: [message]" |
true |
failure |
"Audit Concern: [message]" |
Targeted Review Rules
For teams that need specific reviewers for certain files or directories, you can configure review rules with glob patterns. When rules are configured, reviews are automatically triggered after a commit if any changed files match a rule pattern. The appropriate reviewers are assigned based on the matching rules.
This allows:
- Opt-in by Default: Without rules,
tbdflow review --triggeris manual - Auto-trigger with Rules: When rules are configured and files match, reviews are triggered automatically after commit
- Smart Routing: Database changes go to the DB expert, infrastructure changes go to DevOps, etc.
review:
enabled: true
strategy: github-issue
default_reviewers:
- cladam
rules:
# Database changes get reviewed by the DB expert
- pattern: "migrations/**"
reviewers:
# Targeted review for infrastructure changes
- pattern: "infra/*.tf"
reviewers:
# Targeted review for critical security modules
- pattern: "src/auth/**"
reviewers:
Rule Options:
| Field | Description | Required |
|---|---|---|
pattern |
Glob pattern for files that trigger this rule (e.g., src/auth/**) |
Yes |
reviewers |
List of reviewers specifically for these files (uses default if not set) | No |
Strategies:
| Strategy | Description | Best For |
|---|---|---|
github-issue |
CLI creates GitHub issues directly | Small teams, simple setup |
github-workflow |
CLI triggers GitHub Actions for server-side management | Regulated environments, audit trails |
log-only |
Local logging only, no external integration | Offline or air-gapped environments |
Note: Both
github-issueandgithub-workflowstrategies require the GitHub CLI (gh) to be installed and authenticated.
Server-Side Reviews with GitHub Actions
For teams that need commit status gates, full audit trails, or multi-reviewer orchestration, use the
github-workflow strategy. This triggers a GitHub Actions workflow that:
- Creates review issues (even if someone bypasses the CLI)
- Sets commit statuses (
pending→success) for deploy gating - Handles multi-reviewer consensus automatically
To set up:
- Copy
.github/workflows/nbr-review.yml.exampleto.github/workflows/nbr-review.yml - Configure your
.tbdflow.yml:
review:
enabled: true
strategy: github-workflow
workflow: nbr-review.yml
default_reviewers:
- teammate-username
- Run
tbdflow review --triggerand the workflow handles the rest
6. task and note
Think of these as your development scratch pad. Start a task, jot down what you're trying and why, and let the commit pick it all up when you're ready.
Usage:
Options (note):
| Flag | Description | Required |
|---|---|---|
| --show | Show the current intent log instead of adding a note | No |
Examples:
# Start a task and leave breadcrumbs
# View what you've captured
# Notes are automatically included when you commit
# The commit body will contain:
# Intent Log:
# - tried decorator pattern, felt too verbose
# - simple middleware chain works better
7. radar
Scans active remote branches for overlapping work that may cause merge conflicts with your local changes. This is the social coding safety net for Trunk-Based Development, it makes the invisible visible by showing who else is touching the same files before you push.
In TBD, everyone integrates frequently. The biggest fear is two people editing the same lines simultaneously. Standard Git won't warn you until you try to push. Radar warns you before you commit.
Usage:
Detection Levels (configurable in .tbdflow.yml):
| Level | What it checks | Speed |
|---|---|---|
file |
Same files touched (default) | ~5ms/branch |
line |
Overlapping line ranges in same files | ~50ms/branch |
Example output:
OVERLAP DETECTED with 1 active branch(es):
feat/API-42-user-auth (by @alice, 2 commits ahead)
├── src/auth/handler.rs LINE OVERLAP
└── src/auth/middleware.rs SAME FILE
3 other active branch(es) have no overlap with your changes.
Hint: Coordinate with the overlapping author(s) before pushing.
Integration:
Radar is also integrated into other commands:
tbdflow syncautomatically shows a one-liner warning if overlap is detected.tbdflow commitoptionally warns or prompts for confirmation before committing (configurable).
Configuration:
radar:
enabled: true
level: file # file | line
on_sync: true # Show warnings during tbdflow sync
on_commit: warn # off | warn | confirm
ignore_patterns: # Files to exclude from overlap detection
- "*.lock"
- "*-lock.*"
- "CHANGELOG.md"
8. Pre-flight CI check
When enabled, tbdflow sync checks the CI status of the trunk (via the gh CLI) before pulling.
If the trunk is red or pending, you get a prompt instead of blindly pulling a broken build.
Configuration:
ci_check:
enabled: true # default: false
Behaviour:
| Trunk CI status | What happens |
|---|---|
| Green | Silent proceed, prints a brief confirmation |
| Failed | Warns and prompts: "Continue with sync? (y/N)" |
| Pending | Informs and prompts: "Pull anyway? (y/N)" |
| Unknown | Proceeds silently (e.g. gh not installed, no CI runs) |
Requires the GitHub CLI (
gh) to be installed and authenticated.
9. Utility commands
Not part of the core workflow, but handy for checking on things:
Examples:
# Does a pull, shows latest changes to main branch, and warns about stale branches.
# If ci_check is enabled, checks trunk CI status first.
# Inspect your current configuration
# Checks the status of the working dir
# Shows the current branch name
# Explicitly checks for local branches older than one day.
# Checks for a new version of tbdflow and updates it if available.
undo
In TBD, the rule is simple: if the trunk breaks, fix it or revert it immediately. tbdflow undo is a smart wrapper
around git revert that syncs with the remote, verifies the commit is on the trunk, cleanly reverts it, and pushes,
all in one command.
Usage:
Options:
| Flag | Description | Required |
|---|---|---|
| --no-push | Create the revert commit locally without pushing. | No |
Examples:
# Revert a specific commit on the trunk
# Revert locally without pushing (e.g. to inspect the result first)
# Preview what would happen without making changes
10. Advanced Usage
Shell Completion
Add tab-completion to your shell:
For Zsh (~/.zshrc):
For Bash (~/.bashrc):
For Fish (~/.config/fish/config.fish):
|
Man Page
&&
IDE support
tbdflow comes with IDE support for:
Contributing
First off, thank you for considering contributing to tbdflow! ❤️
Please feel free to open an issue or submit a pull request.