chronicle

name	chronicle
description	Maintain and update the persistent project chronicle (docs/chronicle.md). Trigger when: - The human requests a history summary or chronicle update. - Starting work on a new codebase and needing context on its evolution. - Prompt contains keywords: /chronicle, chronicle, project history, git log summary, history summary.

Chronicle Workflow

A structured approach to maintaining a high-level, conceptual project chronicle (docs/chronicle.md). This chronicle serves as a persistent decision record, mapping the evolution of the codebase's architecture, workflows, and conventions to optimize agent context and human understanding.

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Purpose

Standard git logs are either too detailed or too fragmented to provide deep architectural context. The Chronicle Workflow maintains an incremental, high-level chronicle file in the repository. Because it uses a commit cutoff marker in its frontmatter, it can be updated cheaply and incrementally over time, serving as a durable project history journal.

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Execution Protocol

To update or initialize the chronicle, follow these steps:

1. Prepare Pending Logs

Run the helper script in prepare mode:

python3 skills/chronicle/scripts/update_chronicle.py --prepare

If the chronicle is already up to date, the script will output: Chronicle is already up to date with HEAD. and you may exit.

Otherwise, it will output a batch of up to 50 commits (from oldest to newest) along with changed files. Note the TARGET_END_SHA printed at the end of the output — you pass it back to the write step so the recorded range is bound to exactly the commits you summarized (immune to HEAD moving in between).

2. Group and Summarize

Using your LLM reasoning, analyze the batch output. Group the commits into conceptual themes rather than listing them raw. Focus on why changes were made, what design decisions were reached, and major milestones.

Organize the summary into the following categories where relevant:

• Architectural Shift / Design Decisions: Major structural changes, folder reorganizations, and key trade-offs.
• Workflow & Rulesets: Updates to workflows, rulesets, and agent configurations.
• Features & Implementation: Core user-facing features and implementations.
• Infrastructure & Quality: CI, tooling, linting, and test configurations.
• Documentation: Significant documentation changes (beyond minor typos).

3. Commit the Update

Run the helper script in write mode, passing the TARGET_END_SHA from Step 1 and your structured Markdown summary:

python3 skills/chronicle/scripts/update_chronicle.py --write --end-sha <TARGET_END_SHA> --summary "<Markdown formatted summary>"

4. Repeat

If the write command output indicates remaining pending commits (e.g., Remaining pending commits: N), repeat from Step 1 until the prepare command reports that it is fully up to date.

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Output Format Guidelines

The chronicle summaries should be written in clean, concise Markdown. Avoid listing individual commit SHAs in the summary text (the headers already track the ranges). Example format:

- **Architectural Shift**: Distilled global ruleset to align with axiom/persona conventions.
- **Workflow & Rulesets**: Formalized planning workflows by adding `SKETCH` and `PLAN` protocols.
- **Quality & Infrastructure**: Ignore cache files and standardize tooling in the root configuration.