CogniFold: Skill for Claude Code

.claude/skills/longmemeval-iterate/SKILL.md

longmemeval-iterate is a skill for Claude Code from OpenUploading/CogniFold. It costs 122 tokens per session (1,262 once invoked), scanned A, original, Apache-2.0.

An automated improvement loop for LongMemEval, a benchmark that tests how well an AI system uses information from long conversations. It repeatedly measures, diagnoses, changes, and retests a system on 500 examples.

In plain words
What is it for?
It runs baselines, groups and analyzes failures, proposes fixes, retests them, decides whether they help, and commits accepted changes on the dedicated iteration branch.
Why use it?
It organizes benchmark improvement into comparable rounds and prevents changes from being accepted without checking whether they improve the score.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is OpenUploading/CogniFold's own configuration. It tells Claude Code how to work on CogniFold itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything CogniFold configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is bash scripts/parallel_longmemeval.sh <N_PARALLEL> 133 500.

Reuse

Borrowing it

Nothing to install: this file belongs to OpenUploading/CogniFold. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/OpenUploading/CogniFold/main/.claude/skills/longmemeval-iterate/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/OpenUploading/CogniFold

Made for: Claude Code.

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 longmemeval-iterate

README.md
[![agentmods](https://agentmods.dev/badge/skills/openuploading/cognifold/longmemeval-iterate/github.svg)](https://agentmods.dev/skills/openuploading/cognifold/longmemeval-iterate)
Your own site
<a href="https://agentmods.dev/skills/openuploading/cognifold/longmemeval-iterate"><img src="https://agentmods.dev/badge/skills/openuploading/cognifold/longmemeval-iterate/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for longmemeval-iterate

Your own site · 80×15
<a href="https://agentmods.dev/skills/openuploading/cognifold/longmemeval-iterate"><img src="https://agentmods.dev/badge/skills/openuploading/cognifold/longmemeval-iterate.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 122 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,262 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 39
    Skill allows unbounded resource consumption (API calls, storage, compute). Without rate limits or quotas, a compromised or misbehaving agent can cause denial-of-service or cost overruns.
    Fix: Set explicit rate limits, timeouts, and resource quotas for API calls, file operations, and compute. Implement circuit breakers for runaway loops.
How audits are shown
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 5.1 $0.00122 $0.01262
Opus 5.5 $0.00049 $0.00505
Sonnet 5.5 $0.00024 $0.00252
Haiku 4.5 $0.00012 $0.00126

Measured 2mo ago against content hash 465c2ba438cf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

longmemeval-iterate 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 2mo ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/check_setup.sh, scripts/compute_net.py, scripts/drop_qids.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.claude/skills/longmemeval-iterate/SKILL.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LongMemEval Autonomous Iteration

When to use

  • User says "iterate LongMemEval" / "run the longmemeval loop" / "continue R10"
  • After a fresh clone, before any iteration: walk §0 setup
  • Any time the autonomous loop is mid-cycle and needs to resume

Hard rules (never violate)

  1. Branch lock: only commit/push on longmemeval-iter. Verify git branch --show-current returns longmemeval-iter before any git commit. Never touch main / iter / public-release / etc.
  2. Judge lock: --judge-model openai:gpt-4o always. Substituting breaks comparability with Mastra / Hindsight numbers.
  3. Symbolic stack on: --symbolic-resolver --symbolic-temporal --symbolic-bypass must all stay enabled (~5 pp on the score).
  4. Full N=500 each round: no stratified < 133, no sampled subsets. Resume makes incremental cost ≈ wall-clock of one batch anyway.
  5. Cluster-then-diagnose-then-propose: every fix must follow the protocol in references/iteration-rules.md. Skipping this step is the #1 historical cause of regressions.

Setup (one-time per fresh machine)

Run scripts/check_setup.sh — it verifies branch, push credentials, remote, model config in scripts/parallel_longmemeval.sh, and that history_max_effort.md + .max_effort_round exist (creates them if not). Halt and surface any failures.

The loop

loop forever:
    ROUND = read+bump .max_effort_round

    # (1) Baseline: full N=500 run
    bash scripts/parallel_longmemeval.sh <N_PARALLEL> 133 500
    # N_PARALLEL from references/model-config.md Tier table

    # (2) Measure
    metrics = json.load("benchmarks/longmemeval/output/metrics.json")
    correct = metrics["correct"]

    # (3) Terminate if ≥475 AND confirmation rerun also ≥475
    if correct >= 475:
        run confirmation rerun (rm hypothesis.jsonl, re-run full N)
        if confirmed correct2 >= 475:
            commit FINAL + push + EXIT
        # else fall through with corrected (lower) baseline

    # (4) Snapshot pre-fix state
    cp -r output/ output_v${ROUND}/
    append baseline metric to history_max_effort.md
    git add + commit + git push origin longmemeval-iter

    # (5) Analyze failures per references/iteration-rules.md §A-B-C
    # (6) Propose fix (estimate trigger isolation; not a gate)
    # (7) Drop test_set qids, re-run with SAME N_PARALLEL (see scripts/drop_qids.py)
    # (8) Compute net = fixes - regressions vs output_v${ROUND}/
    # (9) Apply references/iteration-rules.md decision table:
    #     net ≥ +1                   → keep
    #     net ∈ {0, -1} + reusable   → keep (infra)
    #     net ≤ -2                   → revert (restore verdicts + git revert)
    # (10) Commit + push the post-fix state
    # Loop back to (1)

Read the full file on GitHub · 104 lines

Files

What ships with it

7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 2mo ago First seen · 104 lines · 122 tokens per session scan A 465c2ba438cf

Subscribe to this mod's changes

longmemeval-iterate is a skill published in the GitHub repository OpenUploading/CogniFold (63 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 122 tokens to every session and 1,262 once invoked, about $0.0005 per session on Opus 5.5. 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.

Related

Other skills, from other repositories

dev-browser

Browser automation with persistent page state. Use when users ask to navigate websites, fill forms, take screenshots, extract web data, test web apps, or automate browser workflows. Trigger phrases include "go to [url]", "click on", "fill out the form", "take a screenshot", "scrape", "automate", "test the website"…

MemTensor/MemOS · 84 tokens

project-knowledge

Verified, actionable gotchas for oh-my-posh. Read the matching topic file BEFORE changing shell integration scripts (pwsh, zsh, bash, fish, cmd/Clink, nu, elvish, xonsh), terminal or pty behavior, WSL or e2e shell tests, Go internals (cache, segments, streaming, serve daemon, template rendering, output sanitization)…

JanDeDobbeleer/oh-my-posh · 97 tokens

potpie-debug-memory

Use while debugging or troubleshooting failures, flaky tests, incidents, production alerts, CI failures, local dev setup issues, repeated bugs, prior fixes, failed attempts, and verification history.

potpie-ai/potpie · 41 tokens

impl-validator

Independently check whether an implementation matches its stated goal and return PASS/WARN/FAIL with actionable issues. Use for second-opinion validation of an implementation or generated output.

Ar9av/obsidian-wiki · 38 tokens

self-improve-with-tinyfish

Enables Hermes to create new reusable skills for itself by researching live web sources with TinyFish Search and Fetch, analyzing source coverage, writing SKILL.md files, and installing them into Hermes memory. Use when the user asks Hermes to learn, teach itself, upgrade itself, or save a reusable capability.

tinyfish-io/tinyfish-cookbook · 68 tokens

performing-fuzzing-with-aflplusplus

Perform coverage-guided fuzzing of compiled binaries using AFL++ (American Fuzzy Lop Plus Plus) to discover memory corruption, crashes, and security vulnerabilities. The tester instruments target binaries with afl-cc/afl-clang-fast, manages input corpora with afl-cmin and afl-tmin, runs parallel fuzzing campaigns with…

xalgorix/xalgorix · 116 tokens