f5-ctx

f5-ctx is a command for coding agents from Fujigo-Software/f5-framework-claude. It costs 10 tokens per session (1,626 once invoked), scanned A, original, MIT.

A command for saving, restoring, inspecting, and managing the coding agent’s current session and working context.

In plain words
What is it for?
Use it to create checkpoints, restore saved sessions, review or optimize context, manage included files, and remove old checkpoints.
Why use it?
It helps preserve work between sessions and control how much project information the agent is carrying.

Command

Part of the f5-core plugin — 46 commands, 10 agents shipped together

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 commands/fujigo-software/f5-framework-claude/f5-ctx
Clone the repo
git clone --depth 1 https://github.com/Fujigo-Software/f5-framework-claude

Or install f5-core, the plugin that ships this one along with the rest of its 46 commands, 10 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for f5-ctx

README.md
[![agentmods](https://agentmods.dev/badge/commands/fujigo-software/f5-framework-claude/f5-ctx.svg)](https://agentmods.dev/commands/fujigo-software/f5-framework-claude/f5-ctx)
Your own site
<a href="https://agentmods.dev/commands/fujigo-software/f5-framework-claude/f5-ctx"><img src="https://agentmods.dev/badge/commands/fujigo-software/f5-framework-claude/f5-ctx.svg" alt="Measured on agentmods" height="20"></a>
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,626 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 $0.00010 $0.01626
Opus 5 $0.00005 $0.00813
Sonnet 5 $0.00002 $0.00325
Haiku 4.5 $0.00001 $0.00163

Measured 5d ago against content hash ac2ee1f66e68, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

f5-ctx 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 5d 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.

plugins/f5-core/commands/f5-ctx.md · 281 lines

How it starts

The opening of the file, as written. The whole thing — 281 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/f5-ctx - Unified Context & Session Management

Consolidated command that replaces:

  • /f5-checkpoint/f5-ctx checkpoint
  • /f5-context/f5-ctx (context operations)
  • /f5-session/f5-ctx (session operations)

ARGUMENTS

$ARGUMENTS

SUBCOMMANDS

Command Description
status Show session and context status (default)
save [name] Save current session state
restore [id] Restore previous session
list List saved sessions/checkpoints
checkpoint <name> Create named checkpoint
optimize Optimize context usage
analyze Analyze context composition
clear Clear context (with checkpoint)
files Manage file context
clean Remove old checkpoints

ACTION: STATUS (default)

/f5-ctx or /f5-ctx status

Display comprehensive session and context status.

## 📊 Session & Context Status

### Current Session
| Field | Value |
|-------|-------|
| Session ID | sess_[timestamp] |
| Started | [datetime] |
| Duration | [minutes] |
| Last Save | [time ago] |

### State
| Component | Value |
|-----------|-------|
| Gate | [current gate] |
| Persona | [active persona] |
| Mode | [current mode] |
| Skills | [loaded skills count] |

### Context Usage
| Component | Tokens | % |
|-----------|--------|---|
| system | ~8k | 6% |
| project | ~3k | 2% |
| conversation | ~40k | 31% |
| files | ~15k | 12% |
| tools | ~5k | 4% |
| **Total** | **~71k** | **55%** |

### Recent Checkpoints
| # | Name | Created |
|---|------|---------|
| 1 | [name] | [time ago] |

**Quick Commands:**
- `/f5-ctx save` - Save session
- `/f5-ctx checkpoint "name"` - Create checkpoint
- `/f5-ctx optimize` - Optimize context

ACTION: SAVE

/f5-ctx save [name]

Save current session state.

Options:

  • name - Optional name for the save (default: auto timestamp)
  • --description "<desc>" - Add description
  • --tag <tag> - Tag for categorization
  • --auto - Auto-save without confirmation

Read the full file on GitHub · 281 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. 5d ago First seen · 281 lines · 10 tokens per session scan A ac2ee1f66e68

Subscribe to this mod's changes

f5-ctx is a command published in the GitHub repository Fujigo-Software/f5-framework-claude (24 stars, last pushed 7mo ago), licensed MIT. It adds 10 tokens to every session and 1,626 once invoked, about $0.0001 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 2026-08-30.