pymc-labs/pathmc

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Structural causal models with Bayesian estimation and interventional simulation via a concise DSL.

Stars: 128
Forks: 12
Open beginner issues: 0
Indexed issues: 111
Avg merge: 16d 17h
Merged PRs (30d): 1

Dominant language: Python
License: Apache-2.0
Last GitHub push: Sep 10, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue help wanted

Beginner friendly Everything

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106 open issues indexed

Single to_internal/to_business seam for scaling, with a parametrised contract test Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

pymc-labs/pathmc#472 · Opened Sep 10, 2026
Adjustment models silently drop parent priors set via set_priors() and transform-parameter priors Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

pymc-labs/pathmc#465 · Opened Aug 21, 2026
Add a `gamma` family and user-selectable link functions; validate `families` instead of silently falling back to Gaussian Open

pymc-labs/pathmc#464 · 1 assignee · Opened Aug 21, 2026
`adjustment_model()` raises on any parent with a custom `beta_{outcome}` prior; the error's suggested `priors=` workaround is unreachable Open

bug

pymc-labs/pathmc#463 · 1 assignee · Opened Aug 21, 2026
Apply the #454 bins validation shape to `refute.py` and `interpret.py` Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

pymc-labs/pathmc#460 · Opened Aug 16, 2026
[Documentation] Move df generation to start in Quick Start Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

pymc-labs/pathmc#459 · Opened Aug 16, 2026
Incorrect typehint. to_dataset for Dataset Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

pymc-labs/pathmc#457 · Opened Aug 14, 2026
Support the variance-optimal adjustment set (O-set) as a selectable option in AdjustmentModel Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

pymc-labs/pathmc#456 · Opened Aug 14, 2026
Finish pymc-marketing transform delegation once upstream relaxes PyTensor pin Open

blocked?

Difficulty 5/5 Over a week Newbie friendliness 25/100

pymc-labs/pathmc#436 · Opened Aug 12, 2026
Feature: extend simulate() to residual covariances (~~) and HSGP terms Open

enhancement generative-parity stress-test

Difficulty 4/5 3-5 days Newbie friendliness 68/100

pymc-labs/pathmc#434 · 1 comment · Opened Aug 12, 2026
Meta: MMM generative workflows as a stress-test for pathmc panel + simulate APIs Open

enhancement generative-parity scaffolding stress-test

pymc-labs/pathmc#426 · 2 comments · 1 assignee · Opened Aug 12, 2026
Docs: simplify plotting notebooks after plot_dist / trajectory / forest helpers land Open

blocked? documentation plots user experience

Difficulty 5/5 Over a week Newbie friendliness 35/100

pymc-labs/pathmc#422 · Opened Aug 9, 2026
Tier 5 nightly MCMC parameter recovery and light SBC Open

stress-test tests

Difficulty 4/5 3-5 days Newbie friendliness 48/100

pymc-labs/pathmc#415 · Opened Aug 9, 2026
Hypothesis fuzzer for logp-graph consistency (crash mode + corpus) Open

tests

Difficulty 4/5 3-5 days Newbie friendliness 55/100

pymc-labs/pathmc#414 · Opened Aug 9, 2026
Tier 4 MAP parameter-recovery tests over compile matrix Open

stress-test tests

Difficulty 4/5 3-5 days Newbie friendliness 55/100

pymc-labs/pathmc#413 · Opened Aug 9, 2026
Tier 3 metamorphic logp-graph property tests Open

tests

Difficulty 4/5 3-5 days Newbie friendliness 52/100

pymc-labs/pathmc#412 · Opened Aug 9, 2026
Expand graph-consistency compile matrix (adstock, negbinomial, slopes pooling) Open

stress-test tests

Difficulty 3/5 1-2 days Newbie friendliness 68/100

pymc-labs/pathmc#411 · Opened Aug 9, 2026
Add a scheduled git-ai sweep to backfill orphaned notes and self-heal missed consolidations Open

agents dev ops

Difficulty 4/5 3-5 days Newbie friendliness 55/100

pymc-labs/pathmc#393 · 3 comments · Opened Aug 7, 2026
Restart or isolate Jupyter kernel during great-docs preview after code changes Open

dev ops

Difficulty 4/5 3-5 days Newbie friendliness 48/100

pymc-labs/pathmc#384 · Opened Aug 6, 2026
Meta: Native regression adjustment and shared interpret layer Open

enhancement major scaffolding

pymc-labs/pathmc#380 · 3 comments · 1 assignee · Opened Aug 6, 2026
Rank collapse in the conditioning set is silent: surface df / effective_k from the CI core Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

pymc-labs/pathmc#376 · Opened Aug 5, 2026
Scale the default HSGP lengthscale prior to the input range Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

pymc-labs/pathmc#375 · Opened Aug 5, 2026
Feature: spline basis terms (bs/ns) with structured coefficient priors for P-splines Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

pymc-labs/pathmc#373 · Opened Aug 5, 2026
Feature: first-class categorical predictor support Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

pymc-labs/pathmc#372 · Opened Aug 5, 2026
Generalize the HSGP basis machinery into a reusable basis-term abstraction (with fourier() as the second member) Open

enhancement stress-test

Difficulty 5/5 Over a week Newbie friendliness 32/100

pymc-labs/pathmc#371 · Opened Aug 5, 2026
Docs example: heat and mortality in England & Wales Open

documentation

pymc-labs/pathmc#364 · 1 assignee · Opened Jul 13, 2026
Feature: Randomized interventional direct/indirect effects (rIDE/rIIE) Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

pymc-labs/pathmc#363 · Opened Jul 8, 2026
Feature: Hilbert Space Gaussian Process (HSGP) term for smooth nonparametric effects Open

enhancement

pymc-labs/pathmc#360 · 1 assignee · Opened Jul 2, 2026
Ensure we have test coverage over the public API Open

dev ops

pymc-labs/pathmc#351 · 1 assignee · Opened Jun 24, 2026
Binary / non-Gaussian-outcome IV via control-function compilation Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 45/100

pymc-labs/pathmc#348 · Opened Jun 23, 2026
Docs: correct the "No instrumental variables" claim; document IV via correlated residuals Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 72/100

pymc-labs/pathmc#347 · Opened Jun 23, 2026
Continuous-outcome IV: worked example + regression test Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 68/100

pymc-labs/pathmc#346 · Opened Jun 23, 2026
Advisory warning when backdoor identification fails (suggest ~~ + name candidate instruments) Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

pymc-labs/pathmc#345 · Opened Jun 23, 2026
IV-aware identification: instrument detection & validation Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 48/100

pymc-labs/pathmc#344 · 1 comment · Opened Jun 23, 2026
[Epic] Instrumental-variable (IV) support Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

pymc-labs/pathmc#343 · 1 comment · Opened Jun 23, 2026
Automate local release prep: single `make release` target for MINOR/PATCH version-bump PRs Open

dev ops

Difficulty 4/5 3-5 days Newbie friendliness 52/100

pymc-labs/pathmc#342 · Opened Jun 22, 2026
Remove scan beta scalar workaround after PyMC raveled-input scan bug is fixed Open

blocked?

Difficulty 4/5 3-5 days Newbie friendliness 38/100

pymc-labs/pathmc#338 · 1 comment · Opened Jun 22, 2026
[Meta] Adversarial correctness testing to root out logp-graph bugs (follow-up to #316) Open

scaffolding tests

Difficulty 5/5 Over a week Newbie friendliness 25/100

pymc-labs/pathmc#326 · 4 comments · Opened Jun 21, 2026
Add marimo to the dev dependency list Open

Difficulty 1/5 Under an hour Newbie friendliness 85/100

pymc-labs/pathmc#325 · Opened Jun 21, 2026
Add convenient plot functions for quicker path to visualisation Open

documentation enhancement plots user experience

pymc-labs/pathmc#323 · 9 comments · 1 assignee · Opened Jun 20, 2026
Enable multi-version docs (stable + dev) via Great Docs Open

documentation enhancement

Difficulty 4/5 3-5 days Newbie friendliness 55/100

pymc-labs/pathmc#321 · Opened Jun 19, 2026
[Meta] Example docs ideas tracker Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

pymc-labs/pathmc#313 · Opened Jun 19, 2026
Docs example: reciprocal effects over time (feedback loops via lag) Open

documentation stress-test

pymc-labs/pathmc#312 · 1 assignee · Opened Jun 19, 2026
Docs example: longitudinal mediation analysis (prediabetes / DPP-inspired) Open

documentation stress-test

pymc-labs/pathmc#311 · 1 assignee · Opened Jun 18, 2026
Bayesian model averaging of effects across candidate DAGs (structure uncertainty) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

pymc-labs/pathmc#309 · Opened Jun 18, 2026
DAG → pathmc spec translator (accept a list of candidate graphs) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

pymc-labs/pathmc#308 · Opened Jun 18, 2026
[Epic] Causal discovery → structure uncertainty (learn-the-DAG, model-average the effects) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

pymc-labs/pathmc#306 · Opened Jun 18, 2026
[Meta] DAG falsification — follow-up improvements Open

enhancement

pymc-labs/pathmc#287 · 1 assignee · Opened Jun 15, 2026
[Meta] Library-wide improvements for the causal-testing API Open

enhancement

pymc-labs/pathmc#286 · 1 assignee · Opened Jun 15, 2026
Temporal/lag-aware falsification (handle phantom lag() nodes) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 38/100

pymc-labs/pathmc#283 · Opened Jun 15, 2026

pymc-labs/pathmc

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