Context Grooming

Context Grooming

Intro

context-grooming is the periodic-cleanup skill. Once a week or once a month, the agent walks the project's context/ directory against a set of rules and produces a report listing what could be archived, summarized, or disabled. The user approves each item before any file moves. This is how the project keeps its session context lean over time.

Overview

When to run

Triggered by:

• An explicit user request: "groom the context", "let's clean up"
• A cadence configured in processkit.toml:

  [context.grooming]
  cadence = "weekly"     # weekly | monthly | quarterly | never
  

  The agent checks the cadence at session start. If the last grooming was more than the cadence ago, it surfaces:

  "Context grooming was last run 5 weeks ago. Want me to do a pass?"

• A noticeable session-context bloat: more than ~16k tokens loaded at session start (if the agent can detect this — depends on the runtime).

What grooming does

Grooming is a review-then-act workflow:

1. Walk — agent walks context/ against the ruleset (see Level 3).
2. Report — agent produces a grooming-report.md document listing proposed actions, organized by category.
3. Review — user reads the report and approves items individually (or in groups).
4. Act — agent moves/archives/disables only the approved items.
5. Record — appends a LogEntry (event_type: context.groomed) and updates the report's status field.

Nothing is moved silently. Nothing is deleted, ever — the worst that can happen is "moved to context/archive/" which is reversible.

This skill also provides the /context-grooming-run slash command for direct invocation — see commands/context-grooming-run.md.

The grooming report

The report lives at context/grooming-reports/<date>.md. Sample shape:

---
apiVersion: processkit.projectious.work/v2
kind: Context
metadata:
  id: GROOM-2026-04-07
  privacy: project-private
spec:
  state: pending  # pending | approved | applied
  generated: 2026-04-07T10:00:00Z
---

# Grooming report — 2026-04-07

## Workitems eligible for archive (12)

| ID | Title | State | Last touched |
|---|---|---|---|
| BACK-foo | ... | done | 2026-02-01 |
| ... | ... | ... | ... |

[ ] Approve all
[ ] Approve individually: ...

## Standups eligible for summarization (8)

8 standup entries from Q1 2026 can be summarized into a single quarterly
summary:
- 2026-01-05.md → 2026-03-30.md

[ ] Approve summarization

## Unused skills (3)

These skills have not been invoked in any session for 60+ days:
- `pixijs-gamedev` (last used: 2026-01-12)
- `flutter-development` (last used: never since project init)
- `latex-authoring` (last used: 2026-02-08)

[ ] Approve disabling (move from context/skills/ to context/skills/.disabled/)

The default ruleset

These are defaults. Projects can override in processkit.toml:

[context.grooming.rules]
workitem_archive_age_days = 60       # default 30
log_archive_age_days = 180           # default 90
unused_skill_age_days = 90           # default 60
disable_skills_automatically = false # default false (always proposes, never auto-disables)

Gotchas

Agent-specific failure modes — provider-neutral pause-and-self-check items:

• Moving or deleting files without user approval. Grooming is a propose-then-act workflow: generate the report, surface it to the user, act only on approved items. Silently moving files based on the ruleset — even files that clearly qualify — bypasses the user's judgment. Nothing moves without approval.
• Proposing to disable a skill that is currently being used. The "not invoked in 60 days" rule may fire on a skill that was used extensively until recently, or that is central to a project the user is about to resume. Before proposing to disable a skill, check recent session notes and the backlog for references to that skill.
• Grooming the current quarter's standups or in-progress work. The ruleset explicitly skips anything in-progress or less than 30 days old. Proposing to archive a standup from last week, or a workitem currently being worked on, produces a report that damages trust in the grooming process. Always apply the age and status filters strictly.
• Summarizing standups without preserving specific work item references. A quarterly summary that replaces eight individual standup entries must retain all workitem IDs, decision references, and blocker resolutions mentioned in the originals. A summary that says "worked on various items" loses the audit trail. Summarizations are compressions, not erasures.
• Running grooming too frequently, making every report feel like noise. If the user is asked to approve a grooming report every session, they will start ignoring or dismissing them reflexively. Respect the configured cadence. If the user has declined grooming three sessions in a row, offer to change the cadence rather than repeating the offer.
• Treating the default ruleset as mandatory even when the project has overrides. The processkit.toml configuration can change thresholds — a project may archive workitems after 60 days instead of 30, or may never disable skills. Always read the configuration before applying any rule, and apply the project-specific values.
• Not recording the grooming event in the event log. Every grooming session that results in file moves must be recorded as a LogEntry with event_type: context.groomed, listing which items were moved and when. Without this, the next grooming pass cannot determine when the last grooming ran.

Full reference

Configuration

[context.grooming]
cadence = "monthly"           # weekly | monthly | quarterly | never (default: never)
report_dir = "context/grooming-reports"   # default

[context.grooming.rules]
# Override individual rules. All have safe defaults.
workitem_archive_age_days = 30
logentry_archive_age_days = 90
standup_archive_age_days = 90
decision_archive_age_days = 180
oversize_file_threshold_lines = 500
unused_skill_age_days = 60

Archiving entities vs. archiving files

In the entity-sharded world, "archiving" an entity means transitioning it to a terminal state in its state machine — done, cancelled, or archived depending on the kind. This is the primary archive operation:

• WorkItem → done or cancelled
• DecisionRecord → superseded or archived
• Note → archived or promoted

Once in a terminal state, the entity is filtered out of active queries by the MCP server (query_entities(state=active) returns nothing in terminal states). The file stays in place — no move needed for functional purposes.

Physical compaction (moving terminal-state files to context/<kind>/archive/) is an optional aesthetic operation that context-grooming can propose when directories grow unwieldy for human browsing. The threshold is configured via oversize_file_threshold_lines or a simple entity count. Propose compaction — never act without approval.

What grooming will NOT touch

To stay safe and predictable, grooming explicitly skips:

• Anything in context/owner/ (the personal context portfolio)
• Anything in any private/ directory (user-private content)
• The current quarter's standups (only previous quarters get summarized)
• Currently in-progress work (Migration in in-progress/, WorkItem in in-progress state, etc.)
• Files less than 30 days old (regardless of size)
• The context/migrations/ directory (migrations have their own lifecycle)

When to override the cadence

Some projects benefit from rare grooming (long-running R&D where historical context matters); some benefit from frequent grooming (fast- moving sprints). The cadence config is per-project.

If the user repeatedly says "skip grooming" three sessions in a row, the agent should propose:

"You've skipped grooming three times. Do you want me to switch the cadence to a longer interval (or never)?"

Relationship to context budget (in agent-management)

Grooming reduces the LIVE size of the context. The [context.budget] section in processkit.toml (documented in agent-management/SKILL.md) tells the agent how much context to load per session. The two work together: grooming makes the corpus smaller; budget tells the agent how to load selectively.

Ideas for future versions

• Ranking: instead of binary "archive or not", rank files by "loading-cost vs information-value" and propose the bottom 10%.
• Compaction: instead of archive, the agent could rewrite a 500-line workitem-with-history into a 20-line summary + a link to the archived full version.
• Auto-grooming for reversible moves only: a low-risk subset of the rules could be applied automatically (still logged for review). v1 ships with always-propose, never-auto.