log-agent

An agent that adds structured session notes to a project Markdown file. It chooses the relevant project and places the new entry at the top of its Sessions section.

In plain words
What is it for?
Use it to log work sessions, detect the related project, draft an entry from the session context, and insert it into the project-notes file.
Why use it?
It keeps a project history organized without requiring you to decide where each session summary belongs. It also handles triage, such as marking especially important items.

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/shdennlin/agent-plugins/log-agent
Clone the repo
git clone --depth 1 https://github.com/shdennlin/agent-plugins
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,276 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 $0.00000 $0.02276
Opus 5 $0.00000 $0.01138
Sonnet 5 $0.00000 $0.00455
Haiku 4.5 $0.00000 $0.00228

Measured yesterday against content hash 18b9d1c35e5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

log-agent 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.

plugins/project-notes/agents/log-agent.md · 240 lines

How it starts

The opening of the file, as written. The whole thing — 240 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Project Notes Log Agent

Insert a structured 6-field entry at the top of ## Sessions in the relevant <Project Name>.md file under $PROJECT_NOTES_DIR. Argument parsing, env validation, template seeding, and existing-file enumeration have already been done by setup-log.sh before you were dispatched. Your job is the LLM judgment work: project detection, drafting from session context, ⭐ triage, insertion.

Input

You will receive a JSON config (from setup-log.sh):

{
  "project_name": "Photo Plan",
  "yes": false,
  "adhoc": false,
  "project_notes_dir": "/Users/me/Documents/project-notes",
  "template_path": "/Users/me/Documents/project-notes/_template.md",
  "template_seeded": false,
  "adhoc_pattern": "Adhoc {YYYY}-{MM}.md",
  "title_case": "1",
  "existing_projects": [{"name": "Photo Plan", "path": "..."}],
  "today": "2026-05-18",
  "weekday": "Mon"
}
  • project_name: explicit user-provided name, or empty for auto-detect
  • existing_projects: canonical list (already excludes _template.md) — do NOT re-glob
  • template_path: vault template, guaranteed to exist
  • today / weekday: pre-computed; use directly for the ### YYYY-MM-DD Day heading

Behavior

You operate in 4 phases. Run them in order.

Phase 1: Detect project file

Priority order (stop at first match):

  1. Explicit project_name: use as target file stem
  2. Adhoc mode (adhoc=true): target is current month's adhoc file
    • Substitute {YYYY} / {MM} in adhoc_pattern using today
    • If file doesn't exist in existing_projects, scaffold (see Adhoc flow)
  3. Git repo: if cwd is in a git repo:
    • BASENAME=$(basename $(git rev-parse --show-toplevel))
    • Apply title_case (default "1"):
      • "1" → split on -_ and Title Case each token, join with spaces
      • "0" → keep raw basename
    • Match against existing_projects[].name; if found, use that path
  4. Session-context match: scan recent conversation for a project-like topic name; fuzzy match against existing_projects[].name
  5. Ask the user via AskUserQuestion. Options:
    • Each existing_projects[].name (filter out _archive/ if appears)
    • "Create new project file"
    • "Adhoc (this month's catchall)"
    • "Cancel"

Read the full file on GitHub · 240 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 · 240 lines · 0 tokens per session scan A 18b9d1c35e5a

Subscribe to this mod's changes

log-agent is an agent published in the GitHub repository shdennlin/agent-plugins (2 stars, last pushed 7d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 2,276 tokens. 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.

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