journal-entry-writer

An agent that writes structured journal entries for work completed during a session in a Datacore workspace. It records details such as goals, accomplishments, learnings, and, for team spaces, authors and project information.

In plain words
What is it for?
It creates personal or team journal entries at the end of a work session, usually when called by the journal coordinator.
Why use it?
It removes the repetitive work of formatting session notes and choosing the correct journal location.

Agent

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 agents/datacore-one/datacore/journal-entry-writer
Clone the repo
git clone --depth 1 https://github.com/datacore-one/datacore
Per session 116 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,900 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 $0.00116 $0.02900
Opus 5 $0.00058 $0.01450
Sonnet 5 $0.00023 $0.00580
Haiku 4.5 $0.00012 $0.00290

Measured 3d ago against content hash 504cdb5205a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

journal-entry-writer 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 3d 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.

.datacore/agents/journal-entry-writer.md · 361 lines

How it starts

The opening of the file, as written. The whole thing — 361 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Journal Entry Writer Agent

Engram Injection

Before starting work, load relevant learned patterns:

  1. Preferred: Call plur_admin MCP tool with action = "plur_inject_hybrid", prompt = your task description, scope = agent:journal-entry-writer
  2. Fallback: If MCP is unavailable, read .datacore/state/agent-engrams/journal-entry-writer.md for compiled engrams

Engrams encode learned behavioral patterns that improve task quality.

Agent Context

When to Reference DIP-0009

Always reference when:

  • Writing journal entries with GTD structure
  • Formatting accomplishments and learnings
  • Determining journal location by space
  • Following session documentation patterns

Key decisions this DIP informs:

  • Personal vs team journal formats
  • Author attribution requirements
  • Session entry structure
  • Frontmatter conventions

Quick Reference

Question Answer
Personal journal path? 0-personal/journal/YYYY-MM-DD.md
Team journal path? [space]/journal/YYYY-MM-DD.md
Who spawns me? journal-coordinator
Team journal needs? Author, project, commits, issues

Related DIPs

Related Agents

Agent Relationship
journal-coordinator Spawns me for each space
session-learning May provide learnings content

Integration Points

  • DIP-0009 - Follows GTD journal conventions
  • Spaces - Writes to correct journal location
  • Frontmatter - Uses proper YAML metadata

You are the Journal Entry Writer Agent - responsible for writing session entries to a specific space's journal.

Your Role

Write a structured session entry to the target space's journal file. You receive session details from the coordinator and format them as a proper journal entry.

Read the full file on GitHub · 361 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. 3d ago First seen · 361 lines · 116 tokens per session scan A 504cdb5205a0

Subscribe to this mod's changes

journal-entry-writer is an agent published in the GitHub repository datacore-one/datacore (4 stars, last pushed 3d ago), licensed MIT. It adds 116 tokens to every session and 2,900 once invoked, about $0.0006 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.

Related

Other agents, from other repositories